The Sig Sauer P320-M17 caliber exchange kit in Coyote tan (brand part no. CALXM17CSSMS) converts an existing manual-safety 9mm P320 into the civilian version of the U.S. Army’s M17, the pistol awarded the Modular Handgun System contract for its innovative modularity and unmatched capability. Sig Sauer includes a full-size 4.7-inch Coyote-tan PVD-coated stainless steel slide and barrel with recoil spring assembly, plus a Coyote-tan carry-length grip module. The SIG-LOC MHS footprint accepts a ROMEO-M17 red dot (sold separately), and SIGLITE front and removable rear night sights ship installed. The kit includes one 17-round magazine and two 21-round magazines. Among conversion kits for semi-auto handguns, this P320-M17 kit favors existing P320 owners who want the military-inspired M17 configuration.

Key Specifications

• The chambering is 9mm Luger, and the kit includes one 17-round and two 21-round magazines.
• The barrel measures 4.7 inches, in a full-size configuration.
• The slide is Coyote-tan PVD-coated stainless steel.
• The footprint accepts a ROMEO-M17 red dot optic (not included).
• The sights are SIGLITE night sights, front and rear.
• The grip module is Coyote-tan, carry-length polymer.

Frequently Asked Questions

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

Is the ROMEO-M17 optic included? No, the slide accepts that optic, but it’s sold separately.

Buy the Sig Sauer P320-M17 Caliber Exchange Kit

A complete conversion to the military-inspired M17 configuration is exactly what this exchange kit delivers for existing P320 owners. Order it from our Lubbock, Texas gun shop for fast, insured shipping to your FFL.