SIG Sauer Announces Commercial Variant of M18 Pistol

by
posted on December 4, 2019
** When you buy products through the links on our site, we may earn a commission that supports NRA's mission to protect, preserve and defend the Second Amendment. **
m18_lead.jpg

SIG Sauer, Inc. has introduced the P320-M18, the commercial variant of the U.S. Military Modular Handgun System (MHS) M18. A smaller version of the M17, the P320-M18 features a 3.9” barrel, compact slide, and carry length grip module. The M18 was recently chosen as the official sidearm of the U.S. Marine Corps, and has been recently issued alongside the full-size M17 to all branches of the U.S. military as a result of the MHS contract award.

“Since the official selection of the M17 and M18 by the U.S. Army for the Modular Handgun System (MHS), we’ve seen significant civilian interest to own both variants of the handguns. The P320-based M17 and M18 are among the most tested handguns in history and the pair has been proven to be unmatched in both accuracy and reliability,” said Tom Taylor, chief marketing officer and executive vice president, commercial sales. “We are very proud that with the P320-M18, civilians can now own the same innovation and versatility that has made either the M17 and M18 the handgun of choice for all branches of the U.S. Military.”





The P320-M18 is a 9mm striker-fired pistol with an exclusive “M18-XXXXXX” serial number that comes with one 17-round magazine and two 21-round magazines. The pistol features a SIGLITE front night sight and a removable night sight rear plate as specified by the MHS contract. The slide is optic ready and with the rear sight assembly removed, the SIG Sauer Electro-Optics ROMEO1Pro Optic mounts directly to the slide. The P320-M18 is configured nearly identically to the U.S. military’s models and features black controls, a carry-length coyote-tan grip module, coyote PVD finished slide, and an ambidextrous manual safety. The P320-M18 is also available in a state-compliant version and is currently listed on the Massachusetts handgun roster.

P320-M18 Handgun Specs:
Overall Length:
7.2”
Overall Width: 1.6”
Weight (incl. magazine): 28.1 ozs.
Overall Height: 5.5”
Barrel Length: 3.9”
Sight Radius: 5.8”

The P320-M18 handgun is currently shipping and now available in retail stores. For more, visit sigsauer.com.

Latest

Allan Cors In Memoriam
Allan Cors In Memoriam

Past NRA President Allan Cors, 1936-2026: Liberty Takes A Loss

One of liberty’s champions, past NRA President Allan D. Cors died on August 10, 2026.

Moving to the Micro Red-Dot: An Old Dog Learns Some New Tricks

After shooting open-sighted handguns for more than 40 years, the author's aging eyes finally caught up to him, and his concealed-carry pistol now sports a red-dot optic.

Record-Setting Number of Women Receive Free Firearms Training in Michigan

Across two days of free training at Recoil Firearms in Taylor, Mich., a record-setting 2,454 women were given hands-on instruction in the safe and effective use of firearms.

7 New Pistol Suppressors for 2026

For handgunners, having a suppressor makes range trips much more comfortable, and many new suppressors have been designed for maximum compatibility across today's most popular handgun styles and chamberings.

A Victory That Ends A Gun Registry

On August 5, U.S. District Judge James Wesley Hendrix of the Northern District of Texas held that key regulatory provisions of the NFA are unconstitutional as applied to certain categories of firearms.

Criminal Clues: Tips to Avoid Appearing Like a Soft Target

You don’t have to be the hardest target, but you don’t want to be the softest. Here are some tips on how to avoid becoming a target for a criminal looking for his or her next opportunity.

Interests



Get the best of American Rifleman delivered to your inbox.