PSA 7" 300AAC BLACKOUT 1/7 NITRIDE 6" LIGHTWEIGHT HEX M-LOK UPPER W/BCG & CH

Barrel Length: 7" Barrel Profile: Heavy Gas System: Pistol-Length Barrel Steel: 4150V Chrome Moly Vanadium Barrel Finish: Nitride Chrome Lining: None Muzzle Thread: 5/8 x 24 Chamber: 300 Blackout Twist Rate: 1/8 Barrel Extension: M4 Diameter at Gas Block: .750" Gas Block Type: Low-Profile Muzzle Device: A2 Flash Hider Receiver Material: Forged 7075 T6 Aluminum Receiver Type: M4 Handguard Type: PSA 6" Lightweight Hex Full Picatinny M-Lok Free Float Bolt Carrier Group Included: Yes Bolt Steel: Carpenter 158 Charging Handle Included: Yes