The Sig Sauer P320-M17 caliber exchange kit in Coyote tan (brand part no. CALXM17CSSMS) converts an existing manual-safety 9mm P320 to the civilian version of the U.S. Army’s M17, the pistol that won the Modular Handgun System contract. Sig Sauer supplies a full-size 4.7-inch Coyote-tan PVD-coated stainless steel slide and barrel with the recoil spring assembly, plus a Coyote-tan carry-length grip module. SIGLITE front and removable rear night sights come installed, and the SIG-LOC MHS footprint accepts a ROMEO-M17 red dot, which is sold separately. The kit includes one 17-round magazine and two 21-round magazines. For a P320 owner who wants the M17 configuration without buying a new pistol, this Sig Sauer kit is the direct route.

Key Specifications

• The chambering is 9mm Luger, matching the P320 platform the kit converts.
• The kit includes one 17-round and two 21-round magazines, covering carry and range use.
• The barrel measures 4.7 inches in the full-size configuration.
• The slide is Coyote-tan PVD-coated stainless steel, a durable finish that matches the M17 look.
• The sights are SIGLITE night sights, with a front sight and a removable rear.
• The SIG-LOC MHS footprint accepts a ROMEO-M17 red dot optic, which is not included.
• The grip module is a Coyote-tan carry-length polymer module.

Frequently Asked Questions

What does this kit convert? It converts an existing manual-safety 9mm Sig Sauer P320 into the civilian M17 configuration.

Is the ROMEO-M17 optic included? No. The slide accepts the ROMEO-M17 through the SIG-LOC MHS footprint, but the optic is sold separately.

What magazines come in the kit? One 17-round magazine and two 21-round magazines.

Buy the Sig Sauer P320-M17 Caliber Exchange Kit, 9mm, Coyote Tan, 17- and 21-Round Magazines

A complete conversion to the military-inspired M17 setup, from slide and barrel to grip module and magazines, is what this exchange kit delivers for existing P320 owners. Order it from our Lubbock, Texas gun shop for fast, insured shipping to your FFL, and see more semi-auto handguns while you are here.