New Hampshire-based Sig Sauer this week announced they will be delivering a limited run of M18 Commemorative pistols to the consumer market in 2021.

What is the M18?

The M18, a variant of the Sig Sauer P320, was adopted in 2017 as part of the Army's Modular Handgun System contract. Besting a tough field of competitors that read like a who’s who of the firearm world, the new gun was adopted in two formats, the full-sized M17 and the more compact M18.

The M17 and M18 differ about an inch in overall length but share the same P320 series striker-fired action along with coyote-tan PVD coated stainless steel slide, M1913 accessory rail, and a removable top plate for optics. Each can use a 17-round 9mm flush fit or 21-round extended magazine. (Photo: Chris Eger/

While the bulk of Army users – about 95 percent – will be issued the larger of the two, individuals and units requiring a concealed weapon, such as overseas training teams and advisors, investigators, general officers, and special operations personnel, will use the M18. Meanwhile, the Air Force, Marines, and Navy have elected to only adopt the M18, replacing a range of legacy handguns to include the M9 Beretta, M11 Sig P228, Colt M45A1 CQB, M007 Glock, and the long-serving .38-caliber Smith & Wesson M15 K-frame revolver.

M18 Commemorative

Sig Sauer's new Commemorative edition M18 has the same components, coatings, and markings as the military-standard 9mm pistol. 

“The M18-Commemorative is an exciting release for the commercial market, and much like the M17-Commemorative will be coveted by members of the military, veterans, collectors, and firearm enthusiasts alike,” said Tom Taylor, Sig's chief marketing officer and executive vice president, commercial sales.  “Only 5,000 of the M18-Commemorative pistols are being manufactured and include all the required modular handgun system markings including the U.S. Army’s unique identifier (UID) and Sig Sauer Cage Code, making the M18-Commemorative identical to the pistol currently in service with the U.S. military.” 

Using a coyote carry-length grip module and a coyote-tan PVD coated stainless steel slide with the MHS-standard optics cut, the M18 Commemorative has SIGLITE night sights with orange vials in the rear sights – just like the military contract. (Photo: Sig Sauer)
Overall length is 7.2 inches due to a 3.9-inch barrel. Weight is 28.1 ounces. (Photo: Sig Sauer)

Shipping in the same cardboard packaging that Uncle Sam gets his M18s in, the Commemorative will ship with two 21-round and one 17-round mag. 

For those who want something nice to show off their M18 in, Sig will offer a glass-fronted solid cherry presentation box for an extra $199. It includes an M18 coin and data card. (Photo: Sig Sauer)