The Gas Block on your AR-15 / AR-10 style rifle is an integral part of the gas system that allows your rifle to cycle. By tapping off gas from the barrel and diverting it back into the gas key of the bolt carrier group, there is enough inertial force to unlock the bolt carrier, send it rearward to the recoil assembly, and extract and pickup another cartridge to fire.
About this Gas Block: This gas block is machined with a .875 Gas Port. .875 Gas Ports are found on both AR-15 barrels chambered in .223 Remington, 5.56 NATO, and .300 Blackout; and AR-10 barrels chambered in .308, 7.62 NATO, and 6.5 Creedmoor. .875 Is larger than standard .750 gas blocks and will tap more gas off from the barrel. This gas block has a 'low-profile' design and is made to fit underneath a free-float handguard.
Gas Port Size: This gas block is a larger than average .875 size gas block.
Platform: This gas block will work on both AR-15 and AR-10 barrels, for .308 and 6.5 Creedmoor barrels, be mindful of possible tolerance issues in the barrel profile..
Profile: This Gas Block is 'low-profile' and designed to fit underneath free-float handguards.
Finish: Stainless - This gas block uses a stainless finish, improving the corrosion and rust resistance from the elements.
Attachment Style: Slide On - This gas block has a fixed size and must slide on from the front of the rifle and is secured in place with 2 set screws near the bottom.
Material: Stainless Steel - This gas block is made from hardened stainless steel, providing the strength and rigidity to withstand forces of expanding gasses and vibration from the rifle or pistol under operation.
DISCLAIMER: **Before purchasing, please be mindful of possible tolerance differences resulting from your handguard profile, barrel profile, gas length, and barrel gas port.**
Brand: BSF Barrels
Platform: AR-15, AR-10 / LR-308
Model: .875 Low Profile Gas Block, Pin & Set Screws, Polished Stainless Steel
Gas Port Size: 0.875
Attachment Style: Slide On
Material: Stainless Steel
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Warranty, Returns & Terms: MMC Armory offers a 30 day return, refund and exchange policy. You must email or call MMC Armory and obtain an RMA number prior to any return, refund, or exchange. All returns must include the original order number, receipt or invoice, along with the customers billing address, shipping address, contact phone numbers, contact emails, and RMA number. Returns, refunds, and exchanges may take up to two weeks, not including transit times, for processing after we have received return product. Return shipping costs will be the responsibility of the returning party, with the exception of the wrong item being received or on warranty exchange during the first 30 days after delivery. Items returned for warranty will only be replaced or exchanged, no refund given on warranty items.