OEM replacement PSG 22 Parts are manufactured to POF-USA's specifications and only intended for use in PSG 22 firearms. At just over 3lbs, the PSG 22 pistol is equipped with a rear Q.D. mount for single point slings, Enhanced Pressure Device, and 1/2x28 muzzle threads. The receiver accepts AR-15 pattern buffer tubes, triggers, and selectors. The PSG 22 features a monolithic upper receiver and injection molded lower receiver. To top it off, it accepts the widely available 10/22® magazine.