SIG SAUER P320-XTEN 10mm Semi-automatic Pistol The new P320-XTEN takes all the modularity, durability, and accuracy of the XSeries platform-and elevates it to the power of 10. Now available in the potent 10mm chambering, the P320-XTEN comes standard with a 5" bull barrel, XRAY3 day/night sights, and an XSeries optic-ready slide with front and rear serrations. For those looking for even more precision, every P320-XTEN is optics ready and compatible with the SIG SAUER ROMEO2 or Trijicon RMR, both of which can withstand the recoil of the 10mm rounds. The X-Series grip module is exclusive to this line and features a deeper trigger guard undercut, a higher back strap and an extended beavertail to ensure a higher grip for better recoil management. Like all XSeries P320s, the XTEN has the straight trigger that breaks at 90 degrees for an even better feeling pull. It's a competition-ready Pistol out of the box-and it's also a standard 320, with all the modularity that entails. Modular frame assembly allows you to change calibers: 9mm, .357 SIG, .40 S & W, and .45 ACP (conversion kits sold separately) Modular frame assembly allows you to change grip sizes (extra grip modules sold separately) 5 inch bull barrel delivers superior accuracy Trigger is the same as the standard 320 mechanically, but is flat and breaks at 90 degrees for better feel XRAY3 day/night sights for targeting in all conditions Optics-ready slide accepts Romeo2 and Trijicon RMR red dots Undercut trigger and higher extended beavertail for higher grip and better control Includes (2) 15-rd. magazines Order today!