Rock River Arms Operator

Rock River Arms Operator Muzzle Brake Lar-8 Black

Rock River Arms 9mm Operator Muzzle Brake Black

Rock River Arms .458 Operator Muzzle Brake Black

Rock River Arms .223 Operator Muzzle Brake Black

Rock River Arms Completed Upper Receiver Operator ETR .308/7.62x51mm 16 Inch Barrel 1-10 Twist Mid-Length Profile 5/8-24 Threat Free-Float Handguard

Rock River Arms .223 Varmint Operator Muzzle Brake Black

ROCK RIVER ARMS LAR-47 X-1 6POS Operator STCK

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 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 20in Predator HP Upper V2 Stainless Steel