The Sig Sauer Sig Cal-X Kit P320-M17 9mm Full Coyote 17/21rd transforms your manual safety P320 into the civilian configuration of the M17 adopted by the U.S. Army. This complete caliber X-CHANGE kit pairs a full-size 4.7-inch coyote-tan PVD coated stainless steel slide with a matching carry-length grip module, and includes one 17-round and two 21-round steel magazines. The slide features the SIG-LOC MHS footprint for mounting the ROMEO-M17 red dot optic and comes equipped with SIGLITE night sights for low-light confidence.

Designed for shooters who want the M17 layout without buying a whole new pistol, this kit is ideal for range use, training, and general-purpose duty or home-defense roles where capacity and shootability matter. The full-size barrel and recoil spring assembly deliver smooth cycling, while the coyote-tan polymer grip offers secure, comfortable control. Sig Sauer’s attention to modularity and detail is evident throughout, providing a straightforward way to upgrade your existing P320 with proven M17 ergonomics and features.

• Manufacturer: Sig Sauer
• Model: P320 M17 Cal-X Kit
• Caliber: 9mm Luger
• Action: Semi-Automatic (P320 platform, fire control unit not included)
• Barrel Length: 4.7 in
• Number of Magazines: 3
• Capacity: 17-round and 21-round magazines included
• Optic Footprint: SIG-LOC MHS footprint for ROMEO-M17
• Night Sights: SIGLITE Night Sights
• External Safety: Manual Safety Compatible
• Threaded Barrel: No
• What's In The Box: Slide assembly, barrel, recoil spring assembly, grip module, three steel magazines