GEN3 AR308 18″ M-LOK UPPER RECIEVER – W/BCG & CH

The dimpled, 416R Stainless Steel, 308 WIN 1/10 twist, mid-length gas system upper is paired with a 15″ M-Lok free-float rail, low profile adjustable click detent 5 position gas block, and an A2-style muzzle device. The gas system is enhanced with a nitrided gas tube in order to better resist high heat and corrosion. This upper receiver is precision machined from forged 7075-T6 aluminum, then Black anodize hard coated to MIL-8625 Type 3 class 2. With enhanced dual retention anti-slip and anti-rotating handguards.  Tool craft 9310 steel bolt assembly with extra strength extractor springs that is nitride for increased durability.  8620 carrier, nitride treated, with a nitride treated gas key properly staked with grade 8 fasteners.  A 7075 T6 aluminum charging handle is also included.