Shop 84 Deals on Rock River Arms Upper Receivers

Rock River Arms BT-3 Completed Upper Receiver 6.5mm Creedmoor 28in 20in Barrel Standard SS Fluted Profile 1-10 Twist 5/8x24 Thread M-LOK Handguard

Rock River Arms Upper Receiver EOP .223 Wylde 24 Inch Barrel Varmint Profile 1-12 Twist Free-Float Handguard Black

Rock River Arms Completed Upper Receiver X-1 .308/7.62x51mm 18 Inch Barrel 1-10 Twist 5/8-24 Threat Free-Float Handguard Brake Tan

Rock River Arms Completed Upper Receiver Entry Tactical A4 .223/5.56mm 16 Inch Barrel 1-9 Twist 1/2-28 Thread R4 Handguard A2 Flash Hider Black

Rock River Arms Completed Upper Receiver X-1 .223 Wylde 18 Inch Barrel 1-8 Twist 1/2-28 Threat Free-Float Handguard Brake Tan

Rock River Arms Upper Receiver EOP .223 Wylde 24 Inch Barrel Varmint Profile 1-8 Twist Free-Float Handguard Black

Rock River Arms BT-3 Completed Upper Receiver 6.5mm Creedmoor 32in 24in Barrel Standard SS Fluted Profile 1-10 Twist 5/8x24 Thread M-LOK Handguard

Rock River Arms Completed Pistol Upper Receiver A4 .223/5.56mm 7 Inch Barrel 1-9 Twist 1/2-28 Thread Free-Float Handguard A2 Flash Hide Black

Rock River Arms Completed Upper Receiver Left Handed RAGE 2G .223/5.56mm 10.5 Inch Barrel Pistol Profile 1/2-28 Thread Free-Float Handguard A2 Flash

Rock River Arms Upper Receiver EOP .223 Wylde 20 Inch Barrel Varmint Profile 1-8 Twist Free-Float Handguard Black

Rock River Arms Upper Receiver EOP .223 Wylde 16 Inch Barrel Varmint Profile 1-8 Twist Free-Float Handguard Black

Rock River Arms A2 National Match Upper Receiver Assembly with National Match 1/4x1/4 .030 Hooded Aperture Rear Sight Black