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Double Star Ar-15 16" Ds-4 Barreled Upper With Low Profile Gas Block - Ar-15 16" Ds-4 Barreled Upper

Double Star Ar-15 16" Ds-4 Barreled Upper With Low Profile Gas Block - Ar-15 16" Ds-4 Barreled Upper

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Double Star Upper with 16" DS-4 Barrel, ready to be your next build's foundation. DS-4 barrel features a 1-9 twist, M4 feedramps and a matte black, phosphate finish. Barrel is chambered in 5.56x45mm NATO, and does not have chrome lining. Flat top upper... more

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$282.99 $199.99

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Battle Arms Development Ar-15 Titanium .625" Diameter Gas Block - Ar15 Titanium Gas Block .625" Dia

Battle Arms Development Ar-15 Titanium .625" Diameter Gas Block - Ar15 Titanium Gas Block .625" Dia

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Low Profile Gas Block for .625" Diameter Gas Block Journal Ultralightweight 0.03 lbs (0.48oz) with SS Screws Precision CNC from Grade 5 Titanium (2) Stainless Steel Set Screws Included Distinctive "C-Shaped" Profile for Function and Elegance Mfg:... more

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$85.00

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Battle Arms Development Ar-15 Titanium .750" Diameter Gas Block - Ar15 Titanium Gas Block .750" Dia

Battle Arms Development Ar-15 Titanium .750" Diameter Gas Block - Ar15 Titanium Gas Block .750" Dia

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Low Profile Gas Block for .750" Diameter Gas Block Journal Ultralightweight 0.03 lbs (0.48oz) with SS Screws Precision CNC from Grade 5 Titanium (2) Stainless Steel Set Screws Included Distinctive "C-Shaped" Profile for Function and Elegance Mfg:... more

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$89.95

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Dpms Ar-15 5.56 16" Oracle Rifle Kit - 5.56 Oracle Kit

Dpms Ar-15 5.56 16" Oracle Rifle Kit - 5.56 Oracle Kit

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This kit provides everything you need to assemble a complete AR-15 except for the lower receiver and sights. Contains a complete upper receiver with 16" carbine barrel chambered in 5.56 NATO, a DPMS Pardus stock, a single-rail Picatinny rail gas block... more

$527.99

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Sadlak Industries Ar-15/M16 Gas Blocks - Low-Profile, Clamp, Steel

Sadlak Industries Ar-15/M16 Gas Blocks - Low-Profile, Clamp, Steel

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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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$44.99

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Faxon Firearms Ar-15 Low Profile Gas Blocks - Low Profile Gas Block 3 Screw .625

Faxon Firearms Ar-15 Low Profile Gas Blocks - Low Profile Gas Block 3 Screw .625

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Perfect for any rail system, these ultra-low profile gas blocks are the ideal companion for Faxon Firearms (or any other) barrels with a standard diameter gas journal. Made from high-strength steel, all Faxon gas blocks are a matching black luster to... more

$35.99

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Dpms Ar-15/M16 5.56 Mini Sass Barrel - Ar-15/M16 18" 5.56 Mini Sass Barrel Ss 1/2-28

Dpms Ar-15/M16 5.56 Mini Sass Barrel - Ar-15/M16 18" 5.56 Mini Sass Barrel Ss 1/2-28

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Features: 18" Fluted Heavy Barrel Machined from 416R Stainless Steel 1-8 twist Chambered in 5.56x45mm Matte black finish .936" at the gas block (gas block not included) Mid-Length Gas System M4 feedramps �-28 threaded muzzle Benefits: 18" Fluted Heavy... more

$258.99

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Yankee Hill Machine Co. Ar-15/M16 5.56 Carbine Barrels - 16" Ar Barrel Threaded 1:7

Yankee Hill Machine Co. Ar-15/M16 5.56 Carbine Barrels - 16" Ar Barrel Threaded 1:7

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Black nitride, carbine-length barrels are chambered for 5.56mm NATO and have 1-7" rifling that helps stabilize heavy bullets. Exterior is sized to accept a .750" gas block, with the gas port positioned for a carbine-length gas system. Threaded �"-28... more

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$227.99 $164.99

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Faxon Firearms Ar-15/M16 5.56 Pencil Barrels - Ar-15/M16 14.5 Pencil Barrel 4150 Qpq Mid .625

Faxon Firearms Ar-15/M16 5.56 Pencil Barrels - Ar-15/M16 14.5 Pencil Barrel 4150 Qpq Mid .625

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Faxon AR-15 5.56 Pencil barrels have a narrow O.D. both fore and aft of the gas block, for maximum weight saving. AR-15 5.56 Pencil barrels are manufactured at Faxon's ISO-certified facility from one of the hardest materials on the planet, 4150 CMV... more

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$169.99

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Dpms Ar-15 5.56 16" Sportical Rifle Kit - 5.56 Sportical Kit

Dpms Ar-15 5.56 16" Sportical Rifle Kit - 5.56 Sportical Kit

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This kit provides everything you need to assemble a complete AR-15 except for the lower receiver and sights. Contains a complete upper receiver with 16" carbine barrel chambered in 5.56 NATO, a DPMS Pardus stock, a single-rail Picatinny rail gas block... more

$499.99 $383.99

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Faxon Firearms Ar-15 Gunner Barrels - Ar-15 Gunner Barrel, 20", 5.56 Nato, Rifle Length, 4150 Qpq

Faxon Firearms Ar-15 Gunner Barrels - Ar-15 Gunner Barrel, 20", 5.56 Nato, Rifle Length, 4150 Qpq

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The Faxon GUNNER line of AR barrels are well known in the AR world for their unique profile. The GUNNER profile uses the Government profile dimension from extension to the .625" gas block, then is a pencil profile from the gas block forward to the... more

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$189.00

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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

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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 $122.99

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Brownells B-Tac Ar-15 5.56 Barrels - 10.5" 5.56mm 1-9 Govt Carbine Gas System Barrel

Brownells B-Tac Ar-15 5.56 Barrels - 10.5" 5.56mm 1-9 Govt Carbine Gas System Barrel

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The Brownells B-Tac line of barrels are manufactured from 4150V Steel, and feature a Nitride finish for superior harness, lubricity, and ease of cleaning. They feature a 1:7 twist for rifle and 1:9 for pistol length. The barrel O.D. at the gas block is... more

$105.99

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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

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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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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

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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

$163.99

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Faxon Firearms Ar-15 Gunner Barrels - Ar-15 Gunner Barrel, 18", 5.56 Nato, Rifle Length, 4150 Qpq

Faxon Firearms Ar-15 Gunner Barrels - Ar-15 Gunner Barrel, 18", 5.56 Nato, Rifle Length, 4150 Qpq

Free Shipping on Orders Over $100. Use code PJS.

The Faxon GUNNER line of AR barrels are well known in the AR world for their unique profile. The GUNNER profile uses the Government profile dimension from extension to the .625" gas block, then is a pencil profile from the gas block forward to the... more

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$179.00

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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

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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

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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

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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

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$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

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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 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

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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

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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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Radical Firearms Ar-15 Low Profile Gas Block - Ar-15 Gas Block Low Profile .750 Steel Black

Radical Firearms Ar-15 Low Profile Gas Block - Ar-15 Gas Block Low Profile .750 Steel Black

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Introducing the Radical Firearms Micro (Low Profile) Gas Block. Melonite coating, 4140 chromoly steel, chamfered edge, semi-press fit standard gas block Includes: Set screws 4140 chromoly steel Nitride/Melonite QPQ finish Chamfered edge, semi-press fit... more

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$24.74

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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

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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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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

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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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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

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

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

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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

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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

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Luth-Ar Ar-15 Low Profile Gas Block - Ar-15 Low Profile Gas Block .750 Steel Black

Luth-Ar Ar-15 Low Profile Gas Block - Ar-15 Low Profile Gas Block .750 Steel Black

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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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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

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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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Superlative Arms Ar-15 Adjustable Gas Block .875" Clamp On - Ar-15 Adjustable Gas Block .875" Clamp

Superlative Arms Ar-15 Adjustable Gas Block .875" Clamp On - Ar-15 Adjustable Gas Block .875" Clamp

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he Superlative Arms patented "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 used in... more

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$89.99

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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

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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

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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

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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 .750 Set Screw Titanium

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

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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 .936 Set Screw Titanium

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

Free Shipping on Orders Over $100. Use code PJS.

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

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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 .625 Set Screw Titanium

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

Free Shipping on Orders Over $100. Use code PJS.

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 .875 Set Screw Titanium

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

Free Shipping on Orders Over $100. Use code PJS.

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 .750 Set Screw Steel

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

Free Shipping on Orders Over $100. Use code PJS.

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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