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AR15 M4 Upper 4pcs Replacement Spring Kit

AR15 M4 Upper 4pcs Replacement Spring Kit

AR/M4 4pcs Upper Replacement Spring Set. Upper Ejector Spring Upper Forward Asist Spring Upper Port Cover Ejector Spring Upper Extractor Spring FREE SHIPPING

$5.99

at Combat Optical

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CMMG, Inc AR15 Parts Barrel and Bolt Group Kit 16.1in. M4 22LR Model: 22D7C6C

CMMG, Inc AR15 Parts Barrel and Bolt Group Kit 16.1in. M4 22LR Model: 22D7C6C

CMMG Inc AR15 Parts Barrel and Bolt Group Kit 16.1in. M4 22LR Model: 22D7C6C. 1in. M4 22LR 22D7C6C ... more

CMMG, Inc AR15 Parts Barrel and Bolt Group Kit 16.1in. M4 22LR Model: 22D7C6C

CMMG Inc AR15 Parts Barrel and Bolt Group Kit 16.1in. M4 22LR Model: 22D7C6C. 1in. M4 22LR 22D7C6C

OpticsPlanet

$320.99

FREE shipping

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Franklin Armory AR15 Upper Receivers F17-M4 Piston 17 WSM Complete Upper W/Magazine 16in Black

Franklin Armory AR15 Upper Receivers F17-M4 Piston 17 WSM Complete Upper W/Magazine 16in Black

Franklin Armory AR15 Upper Receivers F17-M4 Piston 17 WSM Complete Upper W/Magazine 16in Black. Franklin Armory F17-M4 Piston 17 WSM Complete Upper W/Magazine 16in Black 4157 ... more

Franklin Armory AR15 Upper Receivers F17-M4 Piston 17 WSM Complete Upper W/Magazine 16in Black

Franklin Armory AR15 Upper Receivers F17-M4 Piston 17 WSM Complete Upper W/Magazine 16in Black. Franklin Armory F17-M4 Piston 17 WSM Complete Upper W/Magazine 16in Black 4157

OpticsPlanet

$1,329.00

FREE shipping

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Best Seller
Windham Weaponry AR15 Upper Receivers Complete AR-15 Upper 223/5.56 16 4150 Steel M4 Blk UR16M4A4B

Windham Weaponry AR15 Upper Receivers Complete AR-15 Upper 223/5.56 16 4150 Steel M4 Blk UR16M4A4B

Windham Weaponry AR15 Upper Receivers Complete AR-15 Upper 223/5.56 16 4150 Steel M4 Blk UR16M4A4B. 56 16 4150 Steel M4 Blk ... more

Windham Weaponry AR15 Upper Receivers Complete AR-15 Upper 223/5.56 16 4150 Steel M4 Blk UR16M4A4B

Windham Weaponry AR15 Upper Receivers Complete AR-15 Upper 223/5.56 16 4150 Steel M4 Blk UR16M4A4B. 56 16 4150 Steel M4 Blk

OpticsPlanet

$587.49

FREE shipping

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Cmmg Ar-15/M16 Upper Small Parts Kit - Ar15/M16 Upper Pins & Springs Kit

Cmmg Ar-15/M16 Upper Small Parts Kit - Ar15/M16 Upper Pins & Springs Kit

Kits contain commonly-replaced AR-15 parts so you can have replacements on hand for refurbishing and repairing your rifle. Kits come with various mixtures of parts. All kits are sold separately. Mfg: Cmmg SPECS: Fits AR-15 and M16 rifles. ... more

Cmmg Ar-15/M16 Upper Small Parts Kit - Ar15/M16 Upper Pins & Springs Kit

Kits contain commonly-replaced AR-15 parts so you can have replacements on hand for refurbishing and repairing your rifle. Kits come with various mixtures of parts. All kits are sold separately. Mfg: Cmmg SPECS: Fits AR-15 and M16 rifles.

Brownells

$14.99

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Bushmaster Firearms Int.Llc. Ar-15 5.56 11.5" M4 A2 Upper Kit - Ar-15 5.56 11.5" M4 A2 Upper Kit Wit

Bushmaster Firearms Int.Llc. Ar-15 5.56 11.5" M4 A2 Upper Kit - Ar-15 5.56 11.5" M4 A2 Upper Kit Wit

Bushmaster M4 Upper Receiver Kit, ready to complete your build. Kit includes fully assembled A2 upper receiver, bolt carrier group, handguards and charging handle. Upper features a 11.5" M4 barrel which is machined from 4140 chrome moly steel, chrome... ... more

Bushmaster Firearms Int.Llc. Ar-15 5.56 11.5" M4 A2 Upper Kit - Ar-15 5.56 11.5" M4 A2 Upper Kit Wit

Bushmaster M4 Upper Receiver Kit, ready to complete your build. Kit includes fully assembled A2 upper receiver, bolt carrier group, handguards and charging handle. Upper features a 11.5" M4 barrel which is machined from 4140 chrome moly steel, chrome...

Brownells

$459.99

FREE shipping

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Bushmaster Firearms Int.Llc. Ar-15 5.56 16" M4 Upper Kit - Ar-15 5.56 16" M4 Upper Kit With Bcg

Bushmaster Firearms Int.Llc. Ar-15 5.56 16" M4 Upper Kit - Ar-15 5.56 16" M4 Upper Kit With Bcg

Bushmaster M4 Upper Receiver Kit, ready to complete your build. Kit includes fully assembled upper receiver, bolt carrier group, handguards, charging handle and detachable carry handle. Upper features a 16" M4 barrel which is machined from 4140 chrome... ... more

Bushmaster Firearms Int.Llc. Ar-15 5.56 16" M4 Upper Kit - Ar-15 5.56 16" M4 Upper Kit With Bcg

Bushmaster M4 Upper Receiver Kit, ready to complete your build. Kit includes fully assembled upper receiver, bolt carrier group, handguards, charging handle and detachable carry handle. Upper features a 16" M4 barrel which is machined from 4140 chrome...

Brownells

$559.99

FREE shipping

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AR-Stoner Replacement Parts Kit for AR-Stoner Side Charging Upper Receiver

AR-Stoner Replacement Parts Kit for AR-Stoner Side Charging Upper Receiver

IncludesBolt HandleBolt Handle ScrewBack ScrewKeep this AR-Stoner Replacement Parts Kit on hand to replace broken or lost small parts for the AR-Stoner Side Charging Upper Receiver. This Kit includes a replacement bolt handle, bolt handle screw, and... ... more

AR-Stoner Replacement Parts Kit for AR-Stoner Side Charging Upper Receiver

IncludesBolt HandleBolt Handle ScrewBack ScrewKeep this AR-Stoner Replacement Parts Kit on hand to replace broken or lost small parts for the AR-Stoner Side Charging Upper Receiver. This Kit includes a replacement bolt handle, bolt handle screw, and...

MidwayUSA

(950,000+)

$14.99

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MidwayUSA

(950,000+)
Lbe Ar15 M4 Stripped Upper Receiver, Black

Lbe Ar15 M4 Stripped Upper Receiver, Black

Lbe Unlimited M4 Stripped Upper Receiver, Fits Ar15, Black Finish Arstup Model: M4 Product Type: Upper Finish/Color: Black Fit: AR15 ... more

Lbe Ar15 M4 Stripped Upper Receiver, Black

Lbe Unlimited M4 Stripped Upper Receiver, Fits Ar15, Black Finish Arstup Model: M4 Product Type: Upper Finish/Color: Black Fit: AR15

Jet.com

$103.96

FREE shipping

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Ultimate Arms Gear Gunsmith & Armorer's AR15 AR-15 M4 M16 .223 5.56 Heavy Duty Steel (Silver) Multi Tool Combo Wrench + 6-Inch Vernier Caliper Measuring Parts, Spring, Buffer, Gas Tube, Range Target Distances

Ultimate Arms Gear Gunsmith & Armorer's AR15 AR-15 M4 M16 .223 5.56 Heavy Duty Steel (Silver) Multi Tool Combo Wrench + 6-Inch Vernier Caliper Measuring Parts, Spring, Buffer, Gas Tube, Range Target Distances

ProductDescriptionTool-Made of Heavy-Duty Steel - Hammered Paint Black Finish. 12in Long and 3/16in Thick. Breaker Bar Or Torque Wrench. 1/2in Square Driver Opening + Wall Hanging Opening. Enables you to Install and Disassemble Parts. - - - - Vernier... ... more

Ultimate Arms Gear Gunsmith & Armorer's AR15 AR-15 M4 M16 .223 5.56 Heavy Duty Steel (Silver) Multi Tool Combo Wrench + 6-Inch Vernier Caliper Measuring Parts, Spring, Buffer, Gas Tube, Range Target Distances

ProductDescriptionTool-Made of Heavy-Duty Steel - Hammered Paint Black Finish. 12in Long and 3/16in Thick. Breaker Bar Or Torque Wrench. 1/2in Square Driver Opening + Wall Hanging Opening. Enables you to Install and Disassemble Parts. - - - - Vernier...

Jet.com

$29.95

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Ultimate Arms Gear Gunsmith & Armorer's Stainless Steel (Silver) 6-Inch Vernier Caliper Dual Measurement with Thumb Lock 0-6''/0-15cm Measuring Parts, Springs, Buffer Tubes, Bullet Calibers, Gas Tubes, Range and Target Distances For AR15 AR-15 M4 M-4...

Ultimate Arms Gear Gunsmith & Armorer's Stainless Steel (Silver) 6-Inch Vernier Caliper Dual Measurement with Thumb Lock 0-6''/0-15cm Measuring Parts, Springs, Buffer Tubes, Bullet Calibers, Gas Tubes, Range and Target Distances For AR15 AR-15 M4 M-4...

ProductDescriptionVernier Caliper with 6in Inch/15 cm Measuring Range for Measuring the Outside Diameter (OD) of Holes, Grooves, Tube Thicknesses, Depth and Step Measurements of Bores and Grooves. - Thumb Lock Holds the Measurement In Place for... ... more

Ultimate Arms Gear Gunsmith & Armorer's Stainless Steel (Silver) 6-Inch Vernier Caliper Dual Measurement with Thumb Lock 0-6''/0-15cm Measuring Parts, Springs, Buffer Tubes, Bullet Calibers, Gas Tubes, Range and Target Distances For AR15 AR-15 M4 M-4...

ProductDescriptionVernier Caliper with 6in Inch/15 cm Measuring Range for Measuring the Outside Diameter (OD) of Holes, Grooves, Tube Thicknesses, Depth and Step Measurements of Bores and Grooves. - Thumb Lock Holds the Measurement In Place for...

Jet.com

$14.95

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AR-Stoner Upper Receiver Parts Kit AR-15

AR-Stoner Upper Receiver Parts Kit AR-15

FeaturesMil-spec partsGreat for new builds or replacing worn partsDependable parts at an incredible price AR-Stoner is now offering replacement components for the AR-15 that are made to strict military specifications. These high quality components will... ... more

AR-Stoner Upper Receiver Parts Kit AR-15

FeaturesMil-spec partsGreat for new builds or replacing worn partsDependable parts at an incredible price AR-Stoner is now offering replacement components for the AR-15 that are made to strict military specifications. These high quality components will...

MidwayUSA

(950,000+)

$14.99

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MidwayUSA

(950,000+)
Del-Ton M4 MOE M-LOK Carbine Kit AR-15 5.56x45mm NATO 1 in 9" Twist 16" Medium Contour Barrel

Del-Ton M4 MOE M-LOK Carbine Kit AR-15 5.56x45mm NATO 1 in 9" Twist 16" Medium Contour Barrel

The Del-Ton Carbine Kit includes everything you need to turn your stripped lower receiver into a complete rifle. The complete assembled upper receiver features a flattop upper receiver with a 16" M4 profile chrome moly barrel. The 5.56x45mm NATO... ... more

Del-Ton M4 MOE M-LOK Carbine Kit AR-15 5.56x45mm NATO 1 in 9" Twist 16" Medium Contour Barrel

The Del-Ton Carbine Kit includes everything you need to turn your stripped lower receiver into a complete rifle. The complete assembled upper receiver features a flattop upper receiver with a 16" M4 profile chrome moly barrel. The 5.56x45mm NATO...

MidwayUSA

(950,000+)

$586.99

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MidwayUSA

(950,000+)
AR15/M4 Aluminum Quad Rail - 6" long

AR15/M4 Aluminum Quad Rail - 6" long

Mako Group Aluminum Quad Rail is carbine length forend rail system with extended top rail. The top rail is in line with the upper receiver rail, and extends back over the delta ring to allow mounting of optics and other accessories across the entire... ... more

AR15/M4 Aluminum Quad Rail - 6" long

Mako Group Aluminum Quad Rail is carbine length forend rail system with extended top rail. The top rail is in line with the upper receiver rail, and extends back over the delta ring to allow mounting of optics and other accessories across the entire...

3tailer

$192.44 $167.34

FREE shipping

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M4-LE Upper 300 AAC BO 16" Sight

M4-LE Upper 300 AAC BO 16" Sight

16" 300 AAC BLACKOUT Upper Specifications: - Carbine Length Handguard - F-Marked Front Sight Base - Carbine Length Gas System - Flat-top A3 Upper Receiver - Compatible with standard AR15 lowers - 16" Barrel - 1:8 Twist - 5/8x24 Threaded A2 Style Flash... ... more

M4-LE Upper 300 AAC BO 16" Sight

16" 300 AAC BLACKOUT Upper Specifications: - Carbine Length Handguard - F-Marked Front Sight Base - Carbine Length Gas System - Flat-top A3 Upper Receiver - Compatible with standard AR15 lowers - 16" Barrel - 1:8 Twist - 5/8x24 Threaded A2 Style Flash...

3tailer

$757.48 $658.68

FREE shipping

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AR-15 Upper 5pc Spring Replacement Kit

AR-15 Upper 5pc Spring Replacement Kit

5 Piece AR Upper Receiver Spring Replacement Kit. Kit Includes: - Ejector Spring - Forward Assist Spring - Port Cover Spring - Extractor Spring - Extractor Spring Buffer 5 Piece ... more

AR-15 Upper 5pc Spring Replacement Kit

5 Piece AR Upper Receiver Spring Replacement Kit. Kit Includes: - Ejector Spring - Forward Assist Spring - Port Cover Spring - Extractor Spring - Extractor Spring Buffer 5 Piece

3tailer

$15.63 $13.59

FREE shipping

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CMMG Lower Parts AR15 Gun Builder's Kit

CMMG Lower Parts AR15 Gun Builder's Kit

The CMMG Lower Parts AR15 Gun Builder's Kit includes most of the necessary mil-spec parts to build up a lower receiver group. The kit includes: bolt catch, bolt catch plunger, bolt catch roll pin, bolt catch spring, buffer retainer, buffer retainer... ... more

CMMG Lower Parts AR15 Gun Builder's Kit

The CMMG Lower Parts AR15 Gun Builder's Kit includes most of the necessary mil-spec parts to build up a lower receiver group. The kit includes: bolt catch, bolt catch plunger, bolt catch roll pin, bolt catch spring, buffer retainer, buffer retainer...

$44.99

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New MTN-G Pro AR15 / M16 / M4 Gun Cleaning Kit Pistol Cleaning Kit Universal Butt Stock Cleaning Kit for all M16 AR15 Variants Tactical Rifle Gun Brushes Set

New MTN-G Pro AR15 / M16 / M4 Gun Cleaning Kit Pistol Cleaning Kit Universal Butt Stock Cleaning Kit for all M16 AR15 Variants Tactical Rifle Gun Brushes Set

Cleaning kit with 5 piece rods(Includes Loop), adaptor, brass brush, chamber brush,dual-ended nylon brush, oil bottle.Lightweight: It's small and lightweight design allows you to carry it your bag .Portable: The cleaning kit includes a snap on case... ... more

New MTN-G Pro AR15 / M16 / M4 Gun Cleaning Kit Pistol Cleaning Kit Universal Butt Stock Cleaning Kit for all M16 AR15 Variants Tactical Rifle Gun Brushes Set

Cleaning kit with 5 piece rods(Includes Loop), adaptor, brass brush, chamber brush,dual-ended nylon brush, oil bottle.Lightweight: It's small and lightweight design allows you to carry it your bag .Portable: The cleaning kit includes a snap on case...

$14.73

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Tactical Desert Earth Tan Kit M4 M16 AR15 AR-15 .223 Carbine Rifle Includes 6 Position Stock, Commercial Buffer Tube, Spring , Buffer, Castle Nut & End Plate + Cheek Rest Riser 0.7" Low Riser

Tactical Desert Earth Tan Kit M4 M16 AR15 AR-15 .223 Carbine Rifle Includes 6 Position Stock, Commercial Buffer Tube, Spring , Buffer, Castle Nut & End Plate + Cheek Rest Riser 0.7" Low Riser

Reinforced Polymer Construction - Tan Color. High Impact Strong A-Frame Design . Textured Back For "Non-Slip".Stock Includes : Commercial Spec Precision Machined Aluminum Tube, Spring, Buffer, And A Pivoting Steel Sling Swivel. Extends & Collapses in... ... more

Tactical Desert Earth Tan Kit M4 M16 AR15 AR-15 .223 Carbine Rifle Includes 6 Position Stock, Commercial Buffer Tube, Spring , Buffer, Castle Nut & End Plate + Cheek Rest Riser 0.7" Low Riser

Reinforced Polymer Construction - Tan Color. High Impact Strong A-Frame Design . Textured Back For "Non-Slip".Stock Includes : Commercial Spec Precision Machined Aluminum Tube, Spring, Buffer, And A Pivoting Steel Sling Swivel. Extends & Collapses in...

$54.95

FREE shipping

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Ultimate Arms Gear AR15 AR-15 Pack of 50 Roll Pins for AR15 AR-15 M4 M16 Carbine .223 5.56 Mil-Spec Gas Block Tube Small Roll Pin Rifle Replacement Part

Ultimate Arms Gear AR15 AR-15 Pack of 50 Roll Pins for AR15 AR-15 M4 M16 Carbine .223 5.56 Mil-Spec Gas Block Tube Small Roll Pin Rifle Replacement Part

Pack of 50 Gas Tube Roll Pins.Genuine, Mil-spec Quality Small Pins for the AR-15/M-16 that Wear Out, Break, or Just Get Lost. Great for Creating Your Own Emergency Parts Kits.Safely Secures the Gas Tube on your AR. .Whether you're building your own... ... more

Ultimate Arms Gear AR15 AR-15 Pack of 50 Roll Pins for AR15 AR-15 M4 M16 Carbine .223 5.56 Mil-Spec Gas Block Tube Small Roll Pin Rifle Replacement Part

Pack of 50 Gas Tube Roll Pins.Genuine, Mil-spec Quality Small Pins for the AR-15/M-16 that Wear Out, Break, or Just Get Lost. Great for Creating Your Own Emergency Parts Kits.Safely Secures the Gas Tube on your AR. .Whether you're building your own...

$29.99

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Anderson Manufacturing 16in AR15 A3 M4 Complete Upper RF85 Treated Box AR15-A3-UPPER KIT-RF85

Anderson Manufacturing 16in AR15 A3 M4 Complete Upper RF85 Treated Box AR15-A3-UPPER KIT-RF85

Anderson Manufacturing 16in AR15 A3 M4 Complete Upper RF85 Treated Box AR15-A3-UPPER KIT-RF85. Anderson Manufacturing 16in AR15 A3 M4 Complete Upper RF85 Treated Box AR15-A3-UPPER KIT-RF85 ... more

Anderson Manufacturing 16in AR15 A3 M4 Complete Upper RF85 Treated Box AR15-A3-UPPER KIT-RF85

Anderson Manufacturing 16in AR15 A3 M4 Complete Upper RF85 Treated Box AR15-A3-UPPER KIT-RF85. Anderson Manufacturing 16in AR15 A3 M4 Complete Upper RF85 Treated Box AR15-A3-UPPER KIT-RF85

OpticsPlanet

$549.99

FREE shipping

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Anderson Manufacturing AR15 Parts RF85 Treated AR15 A3 Mil-Spec Complete Upper w/M4 Feed Ramps Box

Anderson Manufacturing AR15 Parts RF85 Treated AR15 A3 Mil-Spec Complete Upper w/M4 Feed Ramps Box

Anderson Manufacturing AR15 Parts RF85 Treated AR15 A3 Mil-Spec Complete Upper w/M4 Feed Ramps Box. Anderson Manufacturing RF85 Treated AR15 A3 Mil-Spec Complete Upper w/M4 Feed Ramps Box AR15-A3-UPPER-RF85 ... more

Anderson Manufacturing AR15 Parts RF85 Treated AR15 A3 Mil-Spec Complete Upper w/M4 Feed Ramps Box

Anderson Manufacturing AR15 Parts RF85 Treated AR15 A3 Mil-Spec Complete Upper w/M4 Feed Ramps Box. Anderson Manufacturing RF85 Treated AR15 A3 Mil-Spec Complete Upper w/M4 Feed Ramps Box AR15-A3-UPPER-RF85

OpticsPlanet

$299.99

FREE shipping

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GUNTEC USA AR15 Upper Receivers AR15 5.56 Cal Complete Upper Receiver Combo Kit Black

GUNTEC USA AR15 Upper Receivers AR15 5.56 Cal Complete Upper Receiver Combo Kit Black

GUNTEC USA AR15 Upper Receivers AR15 5.56 Cal Complete Upper Receiver Combo Kit Black. 56 Cal Complete Upper Receiver Combo Kit Black GT-UPPER-KIT ... more

GUNTEC USA AR15 Upper Receivers AR15 5.56 Cal Complete Upper Receiver Combo Kit Black

GUNTEC USA AR15 Upper Receivers AR15 5.56 Cal Complete Upper Receiver Combo Kit Black. 56 Cal Complete Upper Receiver Combo Kit Black GT-UPPER-KIT

OpticsPlanet

$269.99

FREE shipping

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High Standard Ar-15 M4 Spring Kit - Ar-15 Spring Kit - M4

High Standard Ar-15 M4 Spring Kit - Ar-15 Spring Kit - M4

High Standard AR-15 Parts Kits are available in a variety of mixes, perfect for small repairs or overhauling a hard used rifle. These kits are useful for replacing small, easily lost parts or for replacing key rifle components such as recoil springs... ... more

High Standard Ar-15 M4 Spring Kit - Ar-15 Spring Kit - M4

High Standard AR-15 Parts Kits are available in a variety of mixes, perfect for small repairs or overhauling a hard used rifle. These kits are useful for replacing small, easily lost parts or for replacing key rifle components such as recoil springs...

Brownells

$19.99

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Tactical Springs Ar-15/M16/Car-15/M4 Spring Reliability Kit - Car-15/M4 Extra Power Reliability Kit

Tactical Springs Ar-15/M16/Car-15/M4 Spring Reliability Kit - Car-15/M4 Extra Power Reliability Kit

Premium-quality buffer spring helps ensure consistent, dependable operation for tens of thousands of compression cycles. Perfect for the high-volume tactical or competition shooter who needs a finely tuned spring that delivers its full power as... ... more

Tactical Springs Ar-15/M16/Car-15/M4 Spring Reliability Kit - Car-15/M4 Extra Power Reliability Kit

Premium-quality buffer spring helps ensure consistent, dependable operation for tens of thousands of compression cycles. Perfect for the high-volume tactical or competition shooter who needs a finely tuned spring that delivers its full power as...

Brownells

$23.95

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Anderson Manufacturing AR15 Upper Receivers 16in M4 5.56 Complete Upper Box Anderson M4 GUN KIT

Anderson Manufacturing AR15 Upper Receivers 16in M4 5.56 Complete Upper Box Anderson M4 GUN KIT

Anderson Manufacturing AR15 Upper Receivers 16in M4 5.56 Complete Upper Box Anderson M4 GUN KIT. 56 Complete Upper Box ANDERSON M4 GUN KIT ... more

Anderson Manufacturing AR15 Upper Receivers 16in M4 5.56 Complete Upper Box Anderson M4 GUN KIT

Anderson Manufacturing AR15 Upper Receivers 16in M4 5.56 Complete Upper Box Anderson M4 GUN KIT. 56 Complete Upper Box ANDERSON M4 GUN KIT

OpticsPlanet

$519.99

FREE shipping

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Del-Ton AR15 Upper Receivers Rifle Kit 5.56x45mm M-Lok 16 Inch M4 Profile Collapsible Stock FDE

Del-Ton AR15 Upper Receivers Rifle Kit 5.56x45mm M-Lok 16 Inch M4 Profile Collapsible Stock FDE

Del-Ton AR15 Upper Receivers Rifle Kit 5.56x45mm M-Lok 16 Inch M4 Profile Collapsible Stock FDE. 56x45mm M-Lok 16 Inch M4 Profile Collapsible Stock FDE ... more

Del-Ton AR15 Upper Receivers Rifle Kit 5.56x45mm M-Lok 16 Inch M4 Profile Collapsible Stock FDE

Del-Ton AR15 Upper Receivers Rifle Kit 5.56x45mm M-Lok 16 Inch M4 Profile Collapsible Stock FDE. 56x45mm M-Lok 16 Inch M4 Profile Collapsible Stock FDE

OpticsPlanet

$489.99

FREE shipping

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Tactical Springs Ar-15/M16/Car-15/M4 Spring Reliability Kit - Car-15/M4 Enhanced Power Reliability K

Tactical Springs Ar-15/M16/Car-15/M4 Spring Reliability Kit - Car-15/M4 Enhanced Power Reliability K

Premium-quality buffer spring helps ensure consistent, dependable operation for tens of thousands of compression cycles. Perfect for the high-volume tactical or competition shooter who needs a finely tuned spring that delivers its full power as... ... more

Tactical Springs Ar-15/M16/Car-15/M4 Spring Reliability Kit - Car-15/M4 Enhanced Power Reliability K

Premium-quality buffer spring helps ensure consistent, dependable operation for tens of thousands of compression cycles. Perfect for the high-volume tactical or competition shooter who needs a finely tuned spring that delivers its full power as...

Brownells

$23.95

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16in AR15 A3 7.62x39 Complete UpperRF85 Treatedbox AR15-A3-UPPER KIT-7.62-RF85

16in AR15 A3 7.62x39 Complete UpperRF85 Treatedbox AR15-A3-UPPER KIT-7.62-RF85

16in AR15 A3 7.62x39 Complete UpperRF85 Treatedbox AR15-A3-UPPER KIT-7.62-RF85. 62x39 Complete UpperRF85 TreatedBox AR15-A3-UPPER KIT-7.62-RF85 ... more

16in AR15 A3 7.62x39 Complete UpperRF85 Treatedbox AR15-A3-UPPER KIT-7.62-RF85

16in AR15 A3 7.62x39 Complete UpperRF85 Treatedbox AR15-A3-UPPER KIT-7.62-RF85. 62x39 Complete UpperRF85 TreatedBox AR15-A3-UPPER KIT-7.62-RF85

OpticsPlanet

$390.99

FREE shipping

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Colt AR15 Upper Receivers Upper KIT 5.56 16 AR6720CKNHG

Colt AR15 Upper Receivers Upper KIT 5.56 16 AR6720CKNHG

Colt AR15 Upper Receivers Upper KIT 5.56 16 AR6720CKNHG. 56 16 ... more

Colt AR15 Upper Receivers Upper KIT 5.56 16 AR6720CKNHG

Colt AR15 Upper Receivers Upper KIT 5.56 16 AR6720CKNHG. 56 16

OpticsPlanet

$598.99

FREE shipping

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Colt AR15 Upper Receivers Mfg Upper Receiver Conversion Kit 223 Remington/5.56 Nato 16.1 Bl LE6920CK

Colt AR15 Upper Receivers Mfg Upper Receiver Conversion Kit 223 Remington/5.56 Nato 16.1 Bl LE6920CK

Colt AR15 Upper Receivers Mfg Upper Receiver Conversion Kit 223 Remington/5.56 Nato 16.1 Bl LE6920CK. 56 NATO 16.1 Bl ... more

Colt AR15 Upper Receivers Mfg Upper Receiver Conversion Kit 223 Remington/5.56 Nato 16.1 Bl LE6920CK

Colt AR15 Upper Receivers Mfg Upper Receiver Conversion Kit 223 Remington/5.56 Nato 16.1 Bl LE6920CK. 56 NATO 16.1 Bl

OpticsPlanet

$678.99

FREE shipping

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AR15 A3 Mil-Spec Complete Upper M4 Feed Ramps Forward Assist Ejection Port Cover Charging Handle BCG

AR15 A3 Mil-Spec Complete Upper M4 Feed Ramps Forward Assist Ejection Port Cover Charging Handle BCG

AR15 A3 Mil-Spec Complete Upper M4 Feed Ramps Forward Assist Ejection Port Cover Charging Handle BCG. Anderson Manufacturing AR15 A3 Mil-Spec Complete Upper M4 Feed Ramps Forward Assist Ejection Port Cover Charging Handle BCG AR15-A3-UPPER-UM ... more

AR15 A3 Mil-Spec Complete Upper M4 Feed Ramps Forward Assist Ejection Port Cover Charging Handle BCG

AR15 A3 Mil-Spec Complete Upper M4 Feed Ramps Forward Assist Ejection Port Cover Charging Handle BCG. Anderson Manufacturing AR15 A3 Mil-Spec Complete Upper M4 Feed Ramps Forward Assist Ejection Port Cover Charging Handle BCG AR15-A3-UPPER-UM

OpticsPlanet

$165.99

FREE shipping

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Tacfire AR15 Parts AR15 5.56/.233/.300AAC Stripped Upper Receiver w/M4 Feed Ramps Black Model: UP01

Tacfire AR15 Parts AR15 5.56/.233/.300AAC Stripped Upper Receiver w/M4 Feed Ramps Black Model: UP01

Tacfire AR15 Parts AR15 5.56/.233/.300AAC Stripped Upper Receiver w/M4 Feed Ramps Black Model: UP01. 56/.233/.300AAC Stripped Upper Receiver w/M4 Feed Ramps Black UP01 ... more

Tacfire AR15 Parts AR15 5.56/.233/.300AAC Stripped Upper Receiver w/M4 Feed Ramps Black Model: UP01

Tacfire AR15 Parts AR15 5.56/.233/.300AAC Stripped Upper Receiver w/M4 Feed Ramps Black Model: UP01. 56/.233/.300AAC Stripped Upper Receiver w/M4 Feed Ramps Black UP01

OpticsPlanet

$106.49

FREE shipping

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Brownells Ar-15/M16/M4 Hammer Springs - M16/M4 Hammer Spring Burst Fire, Each

Brownells Ar-15/M16/M4 Hammer Springs - M16/M4 Hammer Spring Burst Fire, Each

Put the zing back into the rifle you thought was past its prime. Manufactured to precise tolerances, these high quality, replacement springs help keep your AR-15 functioning properly. Great for emergency spares or for assembling a parts rifle.... ... more

Brownells Ar-15/M16/M4 Hammer Springs - M16/M4 Hammer Spring Burst Fire, Each

Put the zing back into the rifle you thought was past its prime. Manufactured to precise tolerances, these high quality, replacement springs help keep your AR-15 functioning properly. Great for emergency spares or for assembling a parts rifle....

Brownells

$1.51

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Brownells Ar-15/M16/M4 Hammer Springs - M16/M4 Hammer Spring Burst Fire, 3-Pak

Brownells Ar-15/M16/M4 Hammer Springs - M16/M4 Hammer Spring Burst Fire, 3-Pak

Put the zing back into the rifle you thought was past its prime. Manufactured to precise tolerances, these high quality, replacement springs help keep your AR-15 functioning properly. Great for emergency spares or for assembling a parts rifle.... ... more

Brownells Ar-15/M16/M4 Hammer Springs - M16/M4 Hammer Spring Burst Fire, 3-Pak

Put the zing back into the rifle you thought was past its prime. Manufactured to precise tolerances, these high quality, replacement springs help keep your AR-15 functioning properly. Great for emergency spares or for assembling a parts rifle....

Brownells

$3.99

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Del-Ton AR15 Upper Receivers Rifle Kit 5.56x45mm 16 Inch M4 Profile Collapsible Stock RKT100

Del-Ton AR15 Upper Receivers Rifle Kit 5.56x45mm 16 Inch M4 Profile Collapsible Stock RKT100

Del-Ton AR15 Upper Receivers Rifle Kit 5.56x45mm 16 Inch M4 Profile Collapsible Stock RKT100. 56x45mm 16 Inch M4 Profile Collapsible Stock ... more

Del-Ton AR15 Upper Receivers Rifle Kit 5.56x45mm 16 Inch M4 Profile Collapsible Stock RKT100

Del-Ton AR15 Upper Receivers Rifle Kit 5.56x45mm 16 Inch M4 Profile Collapsible Stock RKT100. 56x45mm 16 Inch M4 Profile Collapsible Stock

OpticsPlanet

$407.89

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CMMG, Inc AR15 Upper Receivers Upper Complete M4-le Std Gas 55BE1F0

CMMG, Inc AR15 Upper Receivers Upper Complete M4-le Std Gas 55BE1F0

CMMG Inc AR15 Upper Receivers Upper Complete M4-le Std Gas 55BE1F0. CMMG Inc Upper Complete M4-le Std Gas - 55BE1F0 ... more

CMMG, Inc AR15 Upper Receivers Upper Complete M4-le Std Gas 55BE1F0

CMMG Inc AR15 Upper Receivers Upper Complete M4-le Std Gas 55BE1F0. CMMG Inc Upper Complete M4-le Std Gas - 55BE1F0

OpticsPlanet

$599.99

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Del-Ton AR15 Upper Receivers Rifle Kit 5.56x45mm M-Lok 16 Inch M4 Profile Collapsible Stock

Del-Ton AR15 Upper Receivers Rifle Kit 5.56x45mm M-Lok 16 Inch M4 Profile Collapsible Stock

Del-Ton AR15 Upper Receivers Rifle Kit 5.56x45mm M-Lok 16 Inch M4 Profile Collapsible Stock. 56x45mm M-Lok 16 Inch M4 Profile Collapsible Stock ... more

Del-Ton AR15 Upper Receivers Rifle Kit 5.56x45mm M-Lok 16 Inch M4 Profile Collapsible Stock

Del-Ton AR15 Upper Receivers Rifle Kit 5.56x45mm M-Lok 16 Inch M4 Profile Collapsible Stock. 56x45mm M-Lok 16 Inch M4 Profile Collapsible Stock

OpticsPlanet

$489.99

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Anderson Manufacturing AR15 Upper Receivers EXT 16in M4 Complete Upper w/EXT Forearm

Anderson Manufacturing AR15 Upper Receivers EXT 16in M4 Complete Upper w/EXT Forearm

Anderson Manufacturing AR15 Upper Receivers EXT 16in M4 Complete Upper w/EXT Forearm. Anderson Manufacturing EXT 16in M4 Complete Upper w/EXT Forearm EXT-16-M4 ... more

Anderson Manufacturing AR15 Upper Receivers EXT 16in M4 Complete Upper w/EXT Forearm

Anderson Manufacturing AR15 Upper Receivers EXT 16in M4 Complete Upper w/EXT Forearm. Anderson Manufacturing EXT 16in M4 Complete Upper w/EXT Forearm EXT-16-M4

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$412.99

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Anderson Manufacturing AR15 Upper Receivers EXT 10.5in M4 Complete Upper w/Extended Forearm Box

Anderson Manufacturing AR15 Upper Receivers EXT 10.5in M4 Complete Upper w/Extended Forearm Box

Anderson Manufacturing AR15 Upper Receivers EXT 10.5in M4 Complete Upper w/Extended Forearm Box. 5in M4 Complete Upper w/Extended Forearm Box EXT-10.5-M4 ... more

Anderson Manufacturing AR15 Upper Receivers EXT 10.5in M4 Complete Upper w/Extended Forearm Box

Anderson Manufacturing AR15 Upper Receivers EXT 10.5in M4 Complete Upper w/Extended Forearm Box. 5in M4 Complete Upper w/Extended Forearm Box EXT-10.5-M4

OpticsPlanet

$420.99

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CMMG, Inc AR15 Upper Receivers M4 Upper Receiver 55BA22C

CMMG, Inc AR15 Upper Receivers M4 Upper Receiver 55BA22C

CMMG Inc AR15 Upper Receivers M4 Upper Receiver 55BA22C. CMMG Inc M4 Upper Receiver ... more

CMMG, Inc AR15 Upper Receivers M4 Upper Receiver 55BA22C

CMMG Inc AR15 Upper Receivers M4 Upper Receiver 55BA22C. CMMG Inc M4 Upper Receiver

OpticsPlanet

$133.99

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