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    Ar-15/M16 Complete Upper Receiver - Ar15/M16 Upper Receiver Mid-Length 16" 223 Wylde

    Ar-15/M16 Complete Upper Receiver - Ar15/M16 Upper Receiver Mid-Length 16" 223 Wylde

    Fully-assembled flattop upper receiver includes the bolt/carrier group, charging handle, free-float handguard, gas block, and barrel just add a mil-spec lower and your AR is complete! The versatile, medium-profile 16" barrel with a .223 Wylde that... more

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    $998.99

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    Ar-15 5.56 16" Black Diamond Specter Upper Receiver - Black Diamond Specter Xl Upper Receiver

    Ar-15 5.56 16" Black Diamond Specter Upper Receiver - Black Diamond Specter Xl Upper Receiver

    Flattop upper comes with high-end custom features and accessories already installed, ready to snap on the mil-spec lower receiver of your choice. Comes fully assembled with bolt/carrier, charging handle, tactical handguard, gas block, and... more

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    $869.99

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    Gas Block

    Gas Block

    Machined, aircraft-grade, aluminum, gas block with picatinny rails attaches easily and lets you mount accessories to three sides. Grit blasted for a durable matte finish and hard-coat anodized as per mil spec 8625. Mfg: Vulcan Arms SPECS:... more

    $44.99

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    Promag Flip Up Front Sight Picatinny Model - Pm138

    Promag Flip Up Front Sight Picatinny Model - Pm138

    ProMag Flip Up Sight Picatinny Front Activated PM138 more

    $61

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    Samson Folding Front Sight HK, Gas Block Height, Black

    Samson Folding Front Sight HK, Gas Block Height, Black

    The Samson QF-FFS-EXT Railed Gas Block Folding Front Sight is made from 6061 aluminum mil-spec hardcoat anodized for durability. With a design to prevent fouling from dirt, this reliable sight is built to last. more

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    $72.79

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    Truglo Ar-15 Gas Block Sight Model - Tg115

    Truglo Ar-15 Gas Block Sight Model - Tg115

    Truglo 115 AR-15 Gas Block Sight AR-15 Black TG115 more

    $52

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    Caldwell AR-15 Upper Vise Block Clamp

    Caldwell AR-15 Upper Vise Block Clamp

    Durable design holds receiver securely. Fits left and right-hand Mil Spec A2 upper as well as flat top receivers. Receiver insert with gas tube aligner included. more

    $44.98

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    GG&G, Inc. Sight, Fits Picatinny, Black, Spring Actuated, A2 Flip-up Rear GGG-13

    GG&G, Inc. Sight, Fits Picatinny, Black, Spring Actuated, A2 Flip-up Rear GGG-13

    The Spring-Actuated Flip-Up Front Sight for Tactical For manufactured to be installed on a dovetailed gas block or tactical forearm that is at the same height as a Mil-Spec flattop upper receiver. more

    $104.21

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    Geissele Reaction Block AR-15, LR-308 for Mil-Spec Buffer Tube Diameter

    Geissele Reaction Block AR-15, LR-308 for Mil-Spec Buffer Tube Diameter

    Features Provides a stable platform for building lower receiversAllows for 12, 3, 6 and 9 o’clock positions of lower receiverKeeps both hands of armorer free to workMade in the USA The Geissele Reaction Block is designed to aid in the assembly of lower... more

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    $99.00

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    MidwayUSA

    (775,000+)
    Ar-15/M16 5.56 16" Basic Piston Upper Receivers - Gas Piston Upper Receiver, Carbine

    Ar-15/M16 5.56 16" Basic Piston Upper Receivers - Gas Piston Upper Receiver, Carbine

    Complete Base upper receiver assembly comes ready to install on mil-spec lower receiver to produce a reliable, positive-cycling gas piston gun. Adams Arms' proven piston system doesn't vent hot gases and burned powder into the bolt carrier and... more

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    $529.99

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    Ar-15/M16 Tactical Elite Piston Upper Receivers - Gas Piston Upper Receiver, Pistol

    Ar-15/M16 Tactical Elite Piston Upper Receivers - Gas Piston Upper Receiver, Pistol

    Complete Tactical Elite upper receiver assembly comes ready to install on mil-spec lower receiver to produce a reliable, positive-cycling gas piston gun. Adams Arms' proven piston system doesn't vent hot gases and burned powder into the bolt carrier... more

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    $735.00

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    Ar-15/M16 5.56 16" Basic Piston Upper Receivers - Gas Piston Upper Receiver, Midlength

    Ar-15/M16 5.56 16" Basic Piston Upper Receivers - Gas Piston Upper Receiver, Midlength

    Complete Base upper receiver assembly comes ready to install on mil-spec lower receiver to produce a reliable, positive-cycling gas piston gun. Adams Arms' proven piston system doesn't vent hot gases and burned powder into the bolt carrier and... more

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    $550.99

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    MFT Battlelink Mil-Spec Utility Stock

    MFT Battlelink Mil-Spec Utility Stock

    Manufactured using a reinforced, super-tough polyamide from DuPonts Military Plastic Division, the Battlelink Utility Stock delivers an unsurpassed weight-to-strength ratio, resulting in an amazingly light and strong stock. more

    $98

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    Caldwell Wheeler Delta AR-15 Upper Vise Block Clamp

    Caldwell Wheeler Delta AR-15 Upper Vise Block Clamp

    A heavy-duty clamp for gunsmithing, maintenance or cleaning your mil-spec A2 uppers and flat-top receivers. Safely clamps onto your AR-15 upper receiver and holds it securely without twisting, crushing or marring the finish of your rifle.... more

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    $29.99

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    Caldwell Wheeler Delta AR-15 Upper Vise Block Clamp

    Caldwell Wheeler Delta AR-15 Upper Vise Block Clamp

    A heavy-duty clamp for gunsmithing, maintenance or cleaning your mil-spec A2 uppers and flat-top receivers. Safely clamps onto your AR-15 upper receiver and holds it securely without twisting, crushing or marring the finish of your rifle.... more

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    $29.99

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    Magpul Light Mount V-Block with Rings Polymer Black

    Magpul Light Mount V-Block with Rings Polymer Black

    Features Nearly-universal mounting solution Constructed of reinforced polymer and Mil-Spec anodized aluminum Made in the USA The versatile Light Mount V-Block and Rings from Magpul is a nearly-universal mounting solution for attaching a handheld light... more

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    $17.05

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    MidwayUSA

    (775,000+)
    AB Arms Pro 5.56 BCG Complete Nickel Boron Assembly

    AB Arms Pro 5.56 BCG Complete Nickel Boron Assembly

    AB Arms AB Pro 5.56 Bolt Carrier Group is built to Mil-Spec dimensions. The Nickel Boron coated bolt, carrier, gas key and cam pin needs virtually no lube during use. The phosphate coated extractor has a surface finish that provides superior extraction... more

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    $199.99 $183.59

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    Magpul M-LOK Light-Mount V-Block and Rings

    Magpul M-LOK Light-Mount V-Block and Rings

    Magpuls M-LOK Light-Mount V-Block Rings are compatible with almost any weapon platform and nearly any handheld light with a body dia. from 0.75 to 1.04. Reinforced polymer and mil-spec anodized-aluminum construction for lightweight durability. All... more

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    $17.99

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    Adams Arms MPSDADA AR-15 Gas Piston Kit 16"-18" Mid-Length, .75" Diameter

    Adams Arms MPSDADA AR-15 Gas Piston Kit 16"-18" Mid-Length, .75" Diameter

    The Adams Arms Gas Piston System is an end user-installed, after-market product for Mil-Spec ARs. It will fit on any AR barrel with a .750-inch or 3/4-inch diameter at the shoulder where the front sight base sits. The carbine version will work on... more

    $239.24

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    Trijicon SRS Quick Release Mount

    Trijicon SRS Quick Release Mount

    Trijicon SRS Quick release flattop mount for 1913 or STANAG 4694 picatinny rails is precision CNC machined from a block of 7075-T6 aluminum and finished in hard coat type 3 mil-spec anodized black for a rock hard lasting finish. Weighs 2.75 ounces. The... more

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    $162.51

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    Ab Arms 2100017 Pro 5.56 Bcg Complete Nickel Boron Assembly

    Ab Arms 2100017 Pro 5.56 Bcg Complete Nickel Boron Assembly

    FeaturesAB Arms AB Pro 5.56 Bolt Carrier Group is built to Mil-Spec dimensionsThe Nickel Boron coated bolt carrier gas key and cam pin needs virtually no lube during useThe phosphate coated extractor has a surface finish that provides superior... more

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    $262.14 $201.65

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    Mesa Tactical ITT Enidine Hydraulic Buffer with M4 Sopmod Stock Assembly

    Mesa Tactical ITT Enidine Hydraulic Buffer with M4 Sopmod Stock Assembly

    Free Ship - $49 or more

    Mesa Tactical Mil - spec ITT Enidine Hydraulic Buffer. Block the stock shock! Take the zing of out heavy rifle or shotgun loads... here's the way to reduce felt recoil by up to 70%! Hydraulic Recoil Buffers from Mesa Tactical replace the receiver... more

    $179.99

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    AR-15 Upper Vise Block Clm Delta Series

    AR-15 Upper Vise Block Clm Delta Series

    "AR-15 Upper Vise Block Clm Delta SeriesManufacture ID: 156444The Delta Series AR-15 Upper Vise Block is optimized for left hand and right hand Mil Spec A2 upper receivers with carry handles as well as flattop style receivers. Other AR-15 variants may... more

    $20.99

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    AR-15 Upper Vise Block Clm Delta Series

    AR-15 Upper Vise Block Clm Delta Series

    AR-15 Upper Vise Block Clm Delta SeriesManufacture ID: 156444The Delta Series AR-15 Upper Vise Block is optimized for left hand and right hand Mil Spec A2 upper receivers with carry handles, as well as flattop style receivers. Other AR-15 variants may... more

    $25.42

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    .750 5.56/.223 Low Profile Gas Block

    .750 5.56/.223 Low Profile Gas Block

    Low profile luminum .750 low profile gas block, with 1913/picatinny-style rail, permits mounting iron sights, flashlights or laser aiming devices. Fit on .750" barrels. . T6 6061 Aircraft aluminum body Bead Blast Hard Anodized Finish New Military Spec... more

    $24.95

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    Flip Up Gas Block Front Sight‏

    Flip Up Gas Block Front Sight‏

    The PM138 front sight body and stem are machined from T6 aircraft grade aluminum and type III hard anodized. Steel parts are machined, then black phosphated per mil-spec. Precision machined to fit dovetailed gas blocks meeting MIL-STD 1913 Picatinny... more

    $62.95

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    Truglo Ar-15 Frnt FO Gas Block

    Truglo Ar-15 Frnt FO Gas Block

    The TRUGLO Tactical AR-15 gas block sight is the industryÂ’s BRIGHTEST AR-15 fiber-optic gun sight. Extra long, super bright, protected green fiber. Integral mount for Mil-Spec. 1913 Picatinny rails. Designed to mount on front gas blocks. Includes... more

    $76.50

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    ProMag AR-15 / M16 Flip Up Front Sight

    ProMag AR-15 / M16 Flip Up Front Sight

    The PM138 front sight body and stem are machined from T6 aircraft grade aluminum and type III hard anodized. Steel parts are machined, then black phosphated per mil-spec. Precision machined to fit dovetailed gas blocks meeting MIL-STD 1913 Picatinny... more

    $101.24

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    Wheeler Engineering Delta Series AR-15 Upper Vice Block Clamp

    Wheeler Engineering Delta Series AR-15 Upper Vice Block Clamp

    The Wheeler Engineering Delta Series AR-15 Upper Vice Block Clamp fits left- and right-hand MIL-SPEC A2 upper receivers and flattop receivers. more

    $29.99

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    "AR-15 Upper Vise Block Clm Delta Series"

    "AR-15 Upper Vise Block Clm Delta Series"

    "The Delta Series AR-15 Upper Vise Block is optimized for left hand and right hand Mil Spec A2 upper receivers with carry handles, as well as flattop style receivers. Other AR-15 variants may be adapted with special attention to potentially... more

    $29.99

    FREE shipping

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    Wheeler AR-15 Upper Vise Block Clm Delta Series

    Wheeler AR-15 Upper Vise Block Clm Delta Series

    The Delta Series AR-15 Upper Vise Block is optimized for left hand and right hand Mil Spec A2 upper receivers with carry handles, as well as flattop style receivers. Other AR-15 variants may be adapted with special attention to potentially... more

    $29.99

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    Samson Ffs Fld Frnt Sght Hk (gb)

    Samson Ffs Fld Frnt Sght Hk (gb)

    Samson Manufacturing Corp. Folding Front Sight, Fits Gas Block Height Picatinny, Black, 6061 Aluminum, Mil-spec Hardcoat Anodized For Durability Qf-ffs-extModel: FrontProduct Type: SightFinish/Color: BlackFit: Gas Block PicatinnyAccessories: 6061... more

    $90.99

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    "223/5.56 Bolt and Carrier Group"

    "223/5.56 Bolt and Carrier Group"

    "Complete 223/5.56 bolt carrier group; mil-spec bolt, (M16-type) bolt carrier, firing pin, retainer, and cam pin; black manganese phosphate coating with ceramic lined bolt carrier and gas key." more

    $199.99

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    UTG Model 47 Universal Tactical Quad Rail System

    UTG Model 47 Universal Tactical Quad Rail System

    • Fits Romanian, Bulgarian,Chinese and US AKs and Variants, Including Models with Oversized Barrel/Rear Sight Block • Rugged Aircraft Aluminum Alloy Construction with Precision CNC Machining • Four Mil-spec Picatinny Rails with Integrated QD Swivel... more

    $69.95

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    "Adams Arms Drop-In Piston Conversion Kits For AR Pistol (PDW) with 4"" Free Float Quad Rail"

    "Adams Arms Drop-In Piston Conversion Kits For AR Pistol (PDW) with 4"" Free Float Quad Rail"

    "Adams Arms Drop-In Piston Conversion Kits For AR Pistol (PDW) with 4"" Free Float Quad Rail Contains our one piece bolt carrier and a 4"" 4 railed forend. The Adams Arms Gas Piston System is an end user installed after-market product for Mil-Spec ARs.... more

    $521.99

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    "Adams Arms Drop-In Piston Conversion Kits For AR-15 (10.5 to 16 inch Barrel)"

    "Adams Arms Drop-In Piston Conversion Kits For AR-15 (10.5 to 16 inch Barrel)"

    "Adams Arms Drop-In Piston Conversion Kits For AR-15 Carbine Contains our 1 piece bolt carrier, handguards and handguard cap. The Adams Arms Gas Piston System is an end user installed after-market product for Mil-Spec ARs. It will fit on any AR barrel... more

    $319.99

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    AB Arms Pro 5.56 BCG Complete Nickel Boron Assembly

    AB Arms Pro 5.56 BCG Complete Nickel Boron Assembly

    AB Arms AB Pro 5.56 Bolt Carrier Group is built to Mil-Spec dimensions. The Nickel Boron coated bolt, carrier, gas key and cam pin needs virtually no lube during use. The phosphate coated extractor has a surface finish that provides superior extraction... more

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    $199.99

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    "Adams Arms Drop-In Piston Conversion Kits For AR-15 (16 to 18 inch Barrel)"

    "Adams Arms Drop-In Piston Conversion Kits For AR-15 (16 to 18 inch Barrel)"

    "Adams Arms Drop-In Piston Conversion Kits For AR-15 Carbine Contains our 1 piece bolt carrier, handguards and handguard cap. The Adams Arms Gas Piston System is an end user installed after-market product for Mil-Spec ARs. It will fit on any AR barrel... more

    $321.99

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    AR-15 Bolt / Bolt Carrier Groups

    AR-15 Bolt / Bolt Carrier Groups

    The AR-15 / M4 .223 Bolt Carrier Groups are standard mil-spec with Carpenter 158 bolts and have been shot peened and mag pen tested. The carrier is made from 8620 alloy steel. Coatings: Hard chrome carrier bore; hard chrome gas key bore; manganese... more

    $189.99

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    "ACOG Tall Quick Release mnt for Compact"

    "ACOG Tall Quick Release mnt for Compact"

    "Precision CNC machined from a block of 6061-T6 aluminum and finished in 3 mil-spec anodized black for a rock hard finish. Fits 1913 Picatinny rails. Made in the USA.Specifications:- Fits: 1.5x16S (M16 Base), 1.5x24, 2x20, 3x24 and 3x30 ACOG Models-... more

    $167.00

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    More information about Hunting & Archery Equipment

    Best prices on Mil spec gas block in Hunting & Archery Equipment. Check out Bizrate for great deals on popular brands like Bravo Company, Brownells and Caldwell. Use Bizrate's latest online shopping features to compare prices. Read product specifications, calculate tax and shipping charges, sort your results, and buy with confidence. Easily narrow your search and find the product that's perfect for you.
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