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.


1 in stock



Barrel Length: 18″

Gas System: Mid-Length

Barrel Profile: A2 Style

Barrel Steel: 416R Stainless Steel

Barrel Finish: Stainless Steel

Chrome Lining: None

Muzzle Thread: 5/8-24

Chamber: 308 WIN

Twist Rate: 1:10

Barrel Extension: M4-style

Diameter at Gas Block: .750

Gas Block Type: Low-profile 5 position click switch adjustable gas block

Gas Tube: Black Nitride Gas Tube

Muzzle Device: A2 Style Flash Hider

Receiver Material: Forged 7075 T6

Receiver Type: AR308/AR10

Handguard Type: 15″ M-Lok Free Float Rail with Anti-slip and anti-rotation features

Bolt Carrier Group Included: Yes, Toolcraft PA10 BCG with extra power extractor spring

Charging Handle Included: Yes, 7075 T6 CH Included

The Gen3 PA10 receivers are functionally compatible with the Gen1 and Gen2 upper receivers, however, we recommend matching Gen3 lowers to Gen3 uppers for best appearance and performance.  There are external cosmetic differences when mixing Gen1 with Gen2 and Gen3 upper and lower receivers that some may not find appealing.  

Additional information

Weight 105.6 oz
Dimensions 32 × 8 × 4 in