Sig Sauer P320 XTEN Carry Comp 10mm 3.8" Barrel 15-Rounds w/ Romeo2 - $1317.41 (Call Price) The SIG SAUER P320 XTEN Carry Comp combines a polymer frame with Polymer X grips for superior control and comfort. The 3.8" barrel ensures precise shooting, while the optics-ready cut allows for easy mounting