Designed and built entirely by SIG SAUER in New Hampshire, the P322 is loaded with premium features, including a removable rear sight that allows you to attach a ROMEOZero red dot sight without adapter plates. The P322 also comes with a threaded barrel adapter that makes it suitable for use with silencers right out of the box. With its ambidextrous controls, interchangeable flat and curved triggers and fiber optic sights, the new P322 is the most powerful and advanced .22 pistol in its class.