AR-15 Pistol Buffer Kit 
AR-15 Complete Upper Assembly 7.5″
Barrel Length: 7.5″ Gas System: Pistol Length Barrel Profile: Medium Barrel Material: 4140 ChroMoly Barrel Finish: Melonite Muzzle Thread: 1/2×28 Chamber: 5.56mm Twist Rate: 1:7 Barrel Extension: M4 Feed Ramp Gas Block Type: .750 Low-profile Gas Block Muzzle Device: A2 Flash Upper Receiver Material: Forged 7075 T6 Upper Receiver Style: M4 Mil-Std Upper Receiver Finish: Type III Anodizing Forward Assist: Yes Dust Cover: Yes Handguard Type: Free Float Handguard Style: M-Lok Thin Rail…