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 drilled for a .625 size gas port. .625 Gas Ports are typically smaller than average and are to be paired with a barrel with a .625 gas port as well. .625 Gas Block have a tendency to have trouble running sub-sonic ammunition, as the amount of gas allowed the smaller porthole is reduced. This gas block is 'low-profile' and is designed to sit underneath a free-float handguard.
Gas Port Size: This gas block is a smaller than average .625 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 freefloat handguards.
Finish: Phosphate - This gas block uses a phosphate finish, making it have improved rust and corrosion resistance. Phosphate finishes typically make the part have a matte finish.
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: Steel - This gas block is made from hardened & tempered 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: Aero Precision
Platform: AR-15, AR-10 / LR-308
Model: .625 Low Profile Gas Block, No Logo - Phosphate
Gas Port Size: 0.625
Attachment Style: Slide On
Please note: If the listing says "In-Stock" it means we have the item(s) in stock. Please check this LINK to view our most up to date shipping status. 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.