Ruger - 10/22 Stripped Aluminum Receiver - #VCSCU-0103

Ruger

Ruger - Factory Ruger MK IV The Backup Upper 5.5" - VCSCU-0034

Ruger

Ruger - Factory Ruger MK IV The Bare Bones Upper 6" - VCSCU-0005

Ruger

Ruger - Standard Ruger MK IV Upper 6" Barreled Receiver .22 LR - VCSCU‑0008

Ruger

Ruger - Standard MK IV Stubby Pencil Profile 4.5” Barreled Receiver .22 LR - VCSCU‑0037

Ruger

Colt - Upper Receiver 223REM/556NATO - SP63528

Colt

Daniel Defense - DDMK18 URG 5.56x45mm NATO Complete AR-15 Upper Receiver - 23-004-08013-011

Daniel Defense

Sons of Liberty Gun Works - M76 9.5" Stripped Upper Receiver - M76-9.5

Sons of Liberty Gunworks