Sig X Change Kit P320 Carry 9mm Xray
Caliber X-Change Kit, P320 TACOPS, 9MM, BLK, 21-round Mag, threaded barrel.
The modular P320 allows you to select any of several centerfire calibers. Just disassemble the pistol and reassemble it with the X-Change Kit's barrel/slide assembly, grip module, and 21 round magazine. Not compatible with manual safety models of the P320.