Results for Rock River Arms 9mm Luger Upper Receivers

Rock River Arms Completed Upper Receiver A4 9MM Luger 4.5 Inch Barrel 1-10 Twist 1/2-36 Thread Free-Float Handguard Vortex Flash Hider Black

Rock River Arms AR-15 A4 Complete Upper Receiver 9MM Luger 7" Chrome Moly Barrel 6" M-LOK Handguard Black

Rock River Arms AR-15 A4 Complete Upper Receiver 9mm Luger 10.5" Chrome Moly Barrel 6" Handguard Black

Rock River Arms AR-15 A4 Complete Upper Receiver 9mm Luger 16" Chrome Moly Barrel 6" Handguard Black

Rock River Arms AR-15 R9 Complete Upper Receiver 9mm Luger 16"Stainless Steel Barrel 15" M-LOK Handguard Black

Rock River Arms Completed Upper Receiver Mid-Length A4 9MM Luger 16 Inch Barrel 1-10 Twist 1/2-36 Thread A2 Flash Hider Black

A4 9mm Upper Receiver