#html-body [data-pb-style=D1SRCX3]{justify-content:center;display:flex;flex-direction:column;background-position:left top;background-size:cover;background-repeat:no-repeat;background-attachment:scroll}#html-body [data-pb-style=D1SRCX3],#html-body [data-pb-style=O65J5KR]{border-style:none;border-width:1px;border-radius:0;margin:0;padding:0}M18 Caliber X-Change Kit, 3.9" configuration.This kit converts a P320 to a non-manual safety version of the renowned M18. The M18 was recently issued to all branches of the U.S. Military and was chosen as the official sidearm of the U.S. Marine Corps. The P320-M18 is the commercial version that brings the same unprecedented accuracy, extreme reliability and unmatched durability the military demands. (1) 17rd & (2) 21rd Magazines*Note, only for use on 9mm/ .357SIG / .40S&W fire control units (FCU). It will not function with a .45 ACP and 10mm FCU.