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Cmmg Ar-15/M16 5.56mm Barrels - Ar15 16" 5.56 Barrel 4140 Mt

Cmmg Ar-15/M16 5.56mm Barrels - Ar15 16" 5.56 Barrel 4140 Mt

Chambered in 5.56mm NATO, these medium profile barrels feature a 1-7 twist with 1/2"-28 muzzle threads, and accept .750" diameter gas blocks. Barrels are available in either 416 stainless steel or 4140 chrome moly steel with a nitride finish.Select... more

$175.99

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Critical Capabilities Ar-15 Barrel .223 Wylde Hbar Profile - Barrel 223 Wyle 16" Carbine Length Blac

Critical Capabilities Ar-15 Barrel .223 Wylde Hbar Profile - Barrel 223 Wyle 16" Carbine Length Blac

New from Critical Capabilities is their 16" .223 Wylde AR-15 threaded barrel in HBAR contour. This carbine length Chrome Moly barrel is .750 diameter at the gas block and features a black phosphate finish. HBAR contour .750" diameter at gas block... more

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$73.99

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Best Seller
Cmmg Ar-15/M16 5.56mm Barrels - Ar15 16" 5.56 Barrel 416ss Mt

Cmmg Ar-15/M16 5.56mm Barrels - Ar15 16" 5.56 Barrel 416ss Mt

Chambered in 5.56mm NATO, these medium profile barrels feature a 1-7 twist with 1/2"-28 muzzle threads, and accept .750" diameter gas blocks. Barrels are available in either 416 stainless steel or 4140 chrome moly steel with a nitride finish.Select... more

$183.99

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Dpms Ar-15 7.5" 5.56 Barrel Chrome Lined 1-9 1/2-28

Dpms Ar-15 7.5" 5.56 Barrel Chrome Lined 1-9 1/2-28

This 7.5" AR-15 barrel is ready for your next SBR or Pistol build. Featuring a chrome lined bore and 5.56 chamber, this barrel will serve you for thousands of rounds. The barrel also has a cutdown front sight base, to serve as a pinned gas block.... more

$193.99

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Faxon Firearms Ar-15 5.56 Gov'T/Socom Barrels - 20" Gov'T/Socom 5.56 Nato Rifle-Length 4150 Qpq

Faxon Firearms Ar-15 5.56 Gov'T/Socom Barrels - 20" Gov'T/Socom 5.56 Nato Rifle-Length 4150 Qpq

Faxon's Gov't / SOCOM 5.56 AR-15 barrel profile is a mix of the standard M4 profile and a heavy profile - skinny behind the gas block with a thicker O.D. ahead of it for a good balance of rigidity (for accuracy) and manageable weight. Machined from... more

$194.99

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Double Star Ar-15/M16 Picatinny Rail Adjustable Gas Block - Picatinny Rail Adjustable Gas Block, .75

Double Star Ar-15/M16 Picatinny Rail Adjustable Gas Block - Picatinny Rail Adjustable Gas Block, .75

Double Star's Picatinny Rail Adjustable Gas block is in house from 6065 T6 aluminum and finished with a black hard coat anodize. The stainless steel adjustment screw is held in place with a brass tipped stainless steel set screw. The brass tip prevents... more

$53.99

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Faxon Firearms Ar-15 5.56 Gov'T/Socom Barrels - Ar-15/M16 10.5" Socom Barrel 4150 Qpq Carbine .750

Faxon Firearms Ar-15 5.56 Gov'T/Socom Barrels - Ar-15/M16 10.5" Socom Barrel 4150 Qpq Carbine .750

Faxon's Gov't / SOCOM 5.56 AR-15 barrel profile is a mix of the standard M4 profile and a heavy profile - skinny behind the gas block with a thicker O.D. ahead of it for a good balance of rigidity (for accuracy) and manageable weight. Machined from... more

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$149.99

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Yankee Hill Machine Co. Ar-15 Gas Block Picatinny - Ar-15 Gas Block Single Rail Picatinny .625 Steel

Yankee Hill Machine Co. Ar-15 Gas Block Picatinny - Ar-15 Gas Block Single Rail Picatinny .625 Steel

Unique, all-steel gas blocks expand the versatility of your rifle by providing a variety of accessory rail and handguard mounting options. Especially helpful in customizing short-barrelled tactical rifles. Machined from bar stock for extra strength and... more

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$63.99

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Yankee Hill Machine Co. Ar-15 Gas Block Picatinny - Ar-15 Gas Block 4-Rail Picatinny .750 Steel Blac

Yankee Hill Machine Co. Ar-15 Gas Block Picatinny - Ar-15 Gas Block 4-Rail Picatinny .750 Steel Blac

Unique, all-steel gas blocks expand the versatility of your rifle by providing a variety of accessory rail and handguard mounting options. Especially helpful in customizing short-barrelled tactical rifles. Machined from bar stock for extra strength and... more

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$73.99

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Badger Ordnance Ar-15 Gas Block Mk12 - Ar-15 Gas Block Mk12 .875 Ss Ss

Badger Ordnance Ar-15 Gas Block Mk12 - Ar-15 Gas Block Mk12 .875 Ss Ss

Slim, low-profile replacement for factory front sight gas block provides maximum clearance for optics and free-float handguards. Streamlined profile reduces forward weight and improves your rifle's appearance. Set screws, gas tube mounting pin, and... more

$68.99

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Brownells Ar-15 Gas Block Kit Modular - Ar-15 Gas Block

Brownells Ar-15 Gas Block Kit Modular - Ar-15 Gas Block

Easy-to-install gas block features an integral fixed rail and a modular design that allows fast installation and removal of up to three, additional Picatinny rails for mounting lasers, lights, night vision optics, back-up sights, and a variety of other... more

$33.99

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Vltor Weapon Systems Ar-15 Gas Block Low Profile - Ar-15 Gas Block Screw Set Low Profile .625 Steel

Vltor Weapon Systems Ar-15 Gas Block Low Profile - Ar-15 Gas Block Screw Set Low Profile .625 Steel

Slim replacement for cumbersome USGI front sight/gas block tower features a low profile for a more streamlined appearance and less chance of snagging on vegetation and other gear. Covers only 1" of barrel length and reduces weapon's forward weight for... more

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$58.99

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Vltor Weapon Systems Ar-15 Gas Block Low Profile - Ar-15 Gas Block Low Profile .750 Steel Black

Vltor Weapon Systems Ar-15 Gas Block Low Profile - Ar-15 Gas Block Low Profile .750 Steel Black

Slim replacement for cumbersome USGI front sight/gas block tower features a low profile for a more streamlined appearance and less chance of snagging on vegetation and other gear. Covers only 1" of barrel length and reduces weapon's forward weight for... more

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$65.99

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Brownells Ar-15 Gas Block Low Profile - Ar-15 Gas Block Low Profile .936 Aluminum Black

Brownells Ar-15 Gas Block Low Profile - Ar-15 Gas Block Low Profile .936 Aluminum Black

Low-profile gas block fits under just about any extended handguard while ensuring proper gas flow to keep your rifle cycling reliably. Precision machined from lightweight, yet tough, 6061 T6 aluminum, so it won't add unwanted forward weight. Slide over... more

$39.99

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Brownells Ar-15 Gas Block Kit Modular - Ar-15 Gas Block Rail

Brownells Ar-15 Gas Block Kit Modular - Ar-15 Gas Block Rail

Easy-to-install gas block features an integral fixed rail and a modular design that allows fast installation and removal of up to three, additional Picatinny rails for mounting lasers, lights, night vision optics, back-up sights, and a variety of other... more

$13.99

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Geissele Automatics Ar-15/M16 Reaction Rod - Reaction Rod

Geissele Automatics Ar-15/M16 Reaction Rod - Reaction Rod

Sturdy steel rod slips into the upper receiver to give needed support for barrel changes and parts installation. Makes removal and installation of barrels, flash suppressors, gas blocks, and handguards much easier. Designed to be gripped in a bench... more

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$89.99 $79.99

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Luth-Ar Ar-15 Low Profile Gas Block - Ar-15 Low Profile Gas Block .936 Steel Black

Luth-Ar Ar-15 Low Profile Gas Block - Ar-15 Low Profile Gas Block .936 Steel Black

Luth-AR factory replacement Gas Blocks. Available in .750 and .936 diameters. Fits standard AR-15 rifles. Mfg: Luth-Ar Llc more

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$17.81

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Yankee Hill Machine Co. Ar-15 5.56 16" Black Diamond Specter Upper Receiver - Black Diamond Specter

Yankee Hill Machine Co. Ar-15 5.56 16" Black Diamond Specter Upper Receiver - Black Diamond Specter

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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$931.99

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Uniquetek Ar-15 Gas Block Aligner - Gas Block Aligner 22 Caliber

Uniquetek Ar-15 Gas Block Aligner - Gas Block Aligner 22 Caliber

Plastic segmented rods fit into AR-15 gas ports and help you find correct alignment between barrel and gas block. Rods come in 6-paks, and in different lengths and diameters to fit the different gas port specs used by various manufacturers. Segmented... more

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$9.99

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Daniel Defense Ar-15 Fixed Front Sight - 2.029" Fixed Front Sight Steel Black

Daniel Defense Ar-15 Fixed Front Sight - 2.029" Fixed Front Sight Steel Black

Front Sight Base CNC machined from 4140 steel, then a Salt Bath Nitride finish applied. Rear of base is serrated to reduce glare. Front sight base fits .625" gas block shoulders. Requires drilling and pinning to barrel. Includes base only. Mfg: Daniel... more

$32.99 $15.99

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Slr Rifleworks Ar-15 Micro Gas Blocks Titanium Set Screw - Micro Gas Block .936 Set Screw Titanium

Slr Rifleworks Ar-15 Micro Gas Blocks Titanium Set Screw - Micro Gas Block .936 Set Screw Titanium

The SLR Rifleworks Micro Gas Block is designed for AR-15 owners looking to add the highest-quality components to their rifles. The SLR Rifleworks Micro Gas Block is constructed with a low-profile design that allows users to place nearly any size... more

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$79.99

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Slr Rifleworks Ar-15 Micro Gas Blocks Steel Set Screw - Micro Gas Block .625 Set Screw Steel

Slr Rifleworks Ar-15 Micro Gas Blocks Steel Set Screw - Micro Gas Block .625 Set Screw Steel

Sick of that front-sight gas block? Change it out and add more versatility to your AR-15 with the addition of the SLR Rifleworks Micro Gas Block. The SLR Rifleworks Micro Gas Block is made with a low-profile design that allows clearance for most... more

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$35.99

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Slr Rifleworks Ar-15 Micro Gas Blocks Titanium Set Screw - Micro Gas Block .750 Set Screw Titanium

Slr Rifleworks Ar-15 Micro Gas Blocks Titanium Set Screw - Micro Gas Block .750 Set Screw Titanium

The SLR Rifleworks Micro Gas Block is designed for AR-15 owners looking to add the highest-quality components to their rifles. The SLR Rifleworks Micro Gas Block is constructed with a low-profile design that allows users to place nearly any size... more

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$74.99

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Slr Rifleworks Ar-15 Micro Gas Blocks Titanium Set Screw - Micro Gas Block .625 Set Screw Titanium

Slr Rifleworks Ar-15 Micro Gas Blocks Titanium Set Screw - Micro Gas Block .625 Set Screw Titanium

The SLR Rifleworks Micro Gas Block is designed for AR-15 owners looking to add the highest-quality components to their rifles. The SLR Rifleworks Micro Gas Block is constructed with a low-profile design that allows users to place nearly any size... more

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$74.99

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Slr Rifleworks Ar-15 Micro Gas Blocks Steel Set Screw - Micro Gas Block .750 Set Screw Steel

Slr Rifleworks Ar-15 Micro Gas Blocks Steel Set Screw - Micro Gas Block .750 Set Screw Steel

Sick of that front-sight gas block? Change it out and add more versatility to your AR-15 with the addition of the SLR Rifleworks Micro Gas Block. The SLR Rifleworks Micro Gas Block is made with a low-profile design that allows clearance for most... more

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$35.99

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Slr Rifleworks Ar-15 Micro Gas Blocks Steel Set Screw - Micro Gas Block .875 Set Screw Steel

Slr Rifleworks Ar-15 Micro Gas Blocks Steel Set Screw - Micro Gas Block .875 Set Screw Steel

Sick of that front-sight gas block? Change it out and add more versatility to your AR-15 with the addition of the SLR Rifleworks Micro Gas Block. The SLR Rifleworks Micro Gas Block is made with a low-profile design that allows clearance for most... more

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$39.99

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Slr Rifleworks Ar-15 Micro Gas Blocks Steel Set Screw - Micro Gas Block .936 Set Screw Steel

Slr Rifleworks Ar-15 Micro Gas Blocks Steel Set Screw - Micro Gas Block .936 Set Screw Steel

Sick of that front-sight gas block? Change it out and add more versatility to your AR-15 with the addition of the SLR Rifleworks Micro Gas Block. The SLR Rifleworks Micro Gas Block is made with a low-profile design that allows clearance for most... more

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$39.99

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Sadlak Industries Ar-15/M16 Gas Blocks - Low-Profile, .625" Bore Dia., Steel

Sadlak Industries Ar-15/M16 Gas Blocks - Low-Profile, .625" Bore Dia., Steel

Aluminum or steel gas blocks give the choices you need to create a custom-built rifle with a mission-specific configuration. Mounts securely to barrel with included setscrews. Clamp-on models squeeze around the barrel as you tighten the side-mounted... more

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$43.99

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Brownells Ar-15/M16 Gas Block Taper Pin Reamer - Taper Pin Reamer

Brownells Ar-15/M16 Gas Block Taper Pin Reamer - Taper Pin Reamer

High-speed steel reamer is precisely tapered to match the shape of the standard A2 gas block retaining pin. Cleans up existing holes or tapers newly drilled holes to ensure a positive, secure fit and precise alignment of the sight tower. Mfg: Brownells... more

$24.99

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Mission First Tactical Ar-15 E-Volv Gas Block Low Profile - Ar-15 E-Volv Low Profile Gas Block .750

Mission First Tactical Ar-15 E-Volv Gas Block Low Profile - Ar-15 E-Volv Low Profile Gas Block .750

For your next AR-15 build, finding the right gas block to keep your semi-automatic system running right is imperative, and the Mission First Tactical AR-15 E-VOLV Low Profile Gas Block is designed to do exactly that. The block is machined from steel... more

$34.99

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Slr Rifleworks Ar-15 Sentry Adjustable Gas Blocks Steel Clamp On - Sentry Gas Block .625 Adjustable

Slr Rifleworks Ar-15 Sentry Adjustable Gas Blocks Steel Clamp On - Sentry Gas Block .625 Adjustable

The SLR Rifleworks Sentry Adjustable Clamp On Gas Block gives AR owners total control over their rifle's gas systems, giving them the chance to fine-tune the gun with different ammo or with an attached suppressor. The SLR Rifleworks Sentry Adjustable... more

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$119.99

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Superlative Arms Ar-15 Adjustable Piston System .625" Clamp On Gas Block - Ar-15 Adj Piston System .

Superlative Arms Ar-15 Adjustable Piston System .625" Clamp On Gas Block - Ar-15 Adj Piston System .

The Superlative Arms patent pending "Bleed Off", direct impingement, gas block for the AR15 platform adjusts the gas flow by bleeding the gas out of the block instead of restricting the flow like conventional adjustable blocks. Results: The pressure... more

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$260.99

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Slr Rifleworks Ar-15 Sentry Adjustable Gas Blocks Steel Clamp On - Sentry Gas Block .875 Adjustable

Slr Rifleworks Ar-15 Sentry Adjustable Gas Blocks Steel Clamp On - Sentry Gas Block .875 Adjustable

The SLR Rifleworks Sentry Adjustable Clamp On Gas Block gives AR owners total control over their rifle's gas systems, giving them the chance to fine-tune the gun with different ammo or with an attached suppressor. The SLR Rifleworks Sentry Adjustable... more

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$119.99

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Slr Rifleworks Ar-15 Sentry Adjustable Gas Blocks Titanium Set Screw - Sentry Gas Block .936 Adjusta

Slr Rifleworks Ar-15 Sentry Adjustable Gas Blocks Titanium Set Screw - Sentry Gas Block .936 Adjusta

The SLR Rifleworks Sentry Adjustable Set-Screw Gas Block ensures that owners of the popular AR-15 rifle aren't held hostage to the limitations of traditional-length gas systems and can adjust their rifle's gas flow for their purposes. The SLR... more

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$184.99

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Slr Rifleworks Ar-15 Sentry Adjustable Gas Blocks Steel Set Screw - Sentry Gas Block .625 Adjustable

Slr Rifleworks Ar-15 Sentry Adjustable Gas Blocks Steel Set Screw - Sentry Gas Block .625 Adjustable

The SLR Rifleworks Sentry Adjustable Set-Screw Gas Block ensures that AR-15 shooters have the ability to fine-tune their gas system for optimum operation. The SLR Rifleworks Sentry Adjustable Set-Screw Gas Block is constructed with a simple metering... more

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$119.99

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Slr Rifleworks Ar-15 Sentry Adjustable Gas Blocks Titanium Set Screw - Sentry Gas Block .625 Adjusta

Slr Rifleworks Ar-15 Sentry Adjustable Gas Blocks Titanium Set Screw - Sentry Gas Block .625 Adjusta

The SLR Rifleworks Sentry Adjustable Set-Screw Gas Block ensures that owners of the popular AR-15 rifle aren't held hostage to the limitations of traditional-length gas systems and can adjust their rifle's gas flow for their purposes. The SLR... more

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$179.00

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J P Enterprises Ar-15/M16 Adjustable Gas Blocks - Low Profile Adjustable Gas Block .750" Stainless S

J P Enterprises Ar-15/M16 Adjustable Gas Blocks - Low Profile Adjustable Gas Block .750" Stainless S

Replaces the factory front sight/gas block and allows you to tune the gas system for smoother cycling and operation. Especially critical on match and varmint rifles when shooting both factory and custom-loaded ammunition. Simple setscrew lets you... more

$80.99

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Slr Rifleworks Ar-15 Sentry Adjustable Gas Blocks Steel Set Screw - Sentry Gas Block .750 Adjustable

Slr Rifleworks Ar-15 Sentry Adjustable Gas Blocks Steel Set Screw - Sentry Gas Block .750 Adjustable

The SLR Rifleworks Sentry Adjustable Set-Screw Gas Block ensures that AR-15 shooters have the ability to fine-tune their gas system for optimum operation. The SLR Rifleworks Sentry Adjustable Set-Screw Gas Block is constructed with a simple metering... more

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$119.99

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Slr Rifleworks Ar-15 Sentry Adjustable Gas Blocks Steel Set Screw - Sentry Gas Block .875 Adjustable

Slr Rifleworks Ar-15 Sentry Adjustable Gas Blocks Steel Set Screw - Sentry Gas Block .875 Adjustable

The SLR Rifleworks Sentry Adjustable Set-Screw Gas Block ensures that AR-15 shooters have the ability to fine-tune their gas system for optimum operation. The SLR Rifleworks Sentry Adjustable Set-Screw Gas Block is constructed with a simple metering... more

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$119.99

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Slr Rifleworks Ar-15 Sentry Adjustable Gas Blocks Titanium Set Screw - Sentry Gas Block .750 Adjusta

Slr Rifleworks Ar-15 Sentry Adjustable Gas Blocks Titanium Set Screw - Sentry Gas Block .750 Adjusta

The SLR Rifleworks Sentry Adjustable Set-Screw Gas Block ensures that owners of the popular AR-15 rifle aren't held hostage to the limitations of traditional-length gas systems and can adjust their rifle's gas flow for their purposes. The SLR... more

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$179.00

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