Description
SIG Sauer P320-M17 9mm Coyote Manual Safety Pistol, 4.7" Barrel, 17-Round
The SIG M17 is the full-size military P320. Coyote, optic-ready, and built around a 4.7 in. barrel, it is the full-size MHS P320 as issued to the U.S. military.
The M17 uses the longer slide, not the carry-size M18. A factory ROMEO-M17 is installed only when this page says so. These pistols ship to a licensed FFL.
This configuration keeps that family feel and changes the details that matter on the gun: barrel, finish, magazines, and whether a factory red dot is already mounted.
This configuration
The optic-ready slide uses a removable night-sight rear plate with a SIGLITE front sight. The ROMEO-M17 is designed for M17/M18 MHS slides; other optics fit only when they match this plate and cut. No red dot is included. The standard magazine is 17 rounds, and two 21-round magazines also ship with this unrestricted CSS model. Choose the 10-round CSS or a Massachusetts-compliant M17 where magazine limits apply.
What ships
A factory optic is installed only when this page says so. This item ships to a licensed FFL. See the SIG M17 collection.
Specifications and Included Items
- Model: M17-9-CSS-MS
- Caliber: 9mm Luger (9x19mm)
- Barrel length: 4.7 in., carbon steel
- Overall length: 8.05 in.
- Width: 1.55 in.
- Weight without magazine: 26.9 oz.
- Weight with empty 17-round magazine: 29.98 oz.
- Slide: Stainless steel, coyote PVD, full-size M17 CSS
- Grip module: Coyote modular polymer
- Sights: SIGLITE front night sight with removable night-sight rear plate
- Optic: Optic-ready slide; optic not included
- Safety: Ambidextrous manual safety
- Magazines included: (1) 17-round and (2) 21-round
- Accessory rail: M1913
- Trigger: Striker-fired; 6.0–7.0 lb pull
- Transfer: FFL required











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