Rock River Arms Coyote Carbine Complete Upper Receiver 300 Blackout 16" Barrel Smith Vortex Flash Hider RRA 12.5" Free Float M-LOK Handguard Anodized Finish Black Fits AR-15 Includes Bolt Carrier Group and Charging Handle Assembly BLK0592
Rock River Arms Tactical Carbine Complete Upper Receiver 450 Bushmaster 16" Barrel Mid-Length Gas System RRA Operator Muzzle Brake RRA 13" Free Float M-LOK Handguard Anodized Finish Black Fits AR-15 5 Rounds 1 Magazine Includes Bolt Carrier Group and Charging Handle Assembly 450B0592
Rock River Arms Tactical Carbine Complete Upper Receiver 458 Socom 16" Barrel RRA Operator Muzzle Brake RRA 15" Free Float M-LOK Handguard Anodized Finish Black Fits AR-15 Includes Bolt Carrier Group and Charging Handle Assembly SOC0564
Rock River Arms RRAGE 3G Complete Upper Receiver 223 Remington/556NATO 16" Barrel A2 Flash Hider RRA 15" Free Float M-LOK Handdguard Anodized Finish Black Fits AR-15 Includes Bolt Carrier Group and Charging Handle Assembly BB0470
Rock River Arms Tactical Carbine Complete Upper Receiver 350 Legend 16" Barrel RRA Operator Muzzle Brake RRA 13" Free Float M-LOK Handguard Anodized Finish Black Fits AR-15 10 Rounds 1 Magazine Includes Bolt Carrier Group and Charging Handle Assembly 350L0328