Sig Sauer 365X9BXR310 P365 X 9mm Luger 3.10" 10+1 (2) Black Black Nitron Stainless Steel Slide Black Polymer Grip. The P365 redefined what a concealed-carry pistol should be. Featuring a 3.1 inch barrel, the XSeries grip module with a 10 round flush fit magazine. These features, along with the signature XSeries flat trigger, all come standard. The P365X maintains the crisp, clean P365 trigger pull. Never has so much versatility and capability been squeezed into such a perfectly concealable size.