SIG Sauer P320 M17 9mm Full-Size, Manual Safety, Custom Window-Milled Slide, Night Sights, 4.7 in Barrel, 17+1
This full-size SIG Sauer P320 M17 pairs an M17-serialized FCU with a custom window-milled slide and an aftermarket ergonomic grip module. It adds a flat-faced, skeletonized trigger and three-dot night sights, plus a rear optics cut with a cover plate. The result is a distinctive, feature-rich 9mm with ambidextrous controls, modularity, and two 17-round factory magazines.
Condition
Overall Condition: Very good condition, showing only light, superficial signs of prior handling or use.
Bore Overall Condition: Good - Clean, well-maintained, minor wear marks.
Bore Rifling: Good Rifling - Intact, well-defined lands and grooves.
Specific Condition Notes: The pistol presents with minor surface scratches and small finish blemishes visible under close inspection.
What's Included
- SIG Sauer hard case (gray)
- SIG Sauer P320 manual
- 2x 17-round factory steel double-stack magazines (one marked Made in Italy, one marked Made in USA)
Configured around an M17-serialized, removable FCU with a manual safety, this P320 retains the platform’s modularity while adding ambidextrous controls. It includes an ambidextrous manual safety and an ambidextrous slide catch, plus a reversible magazine release for adaptable handling.
The custom slide features a longitudinal top window and three oval side windows per side, reducing mass and giving the pistol a distinctive profile. It also includes front and rear serrations for positive manipulation and a rear optics cut secured by two screws with a cover plate installed.
Sights are three-dot night sights, with a front sight marked TG-H3 that uses green tritium lamps, and a dovetailed rear night sight. The dust cover integrates a Picatinny accessory rail for mounting compatible lights or accessories.
The aftermarket black polymer grip module adds finger grooves and a palm swell for a fuller hold. A small geometric logo is molded near the beavertail. The flat-faced, skeletonized trigger provides a modern control surface within the striker-fired action.
This full-size 9mm uses a 4.7 in barrel and a 17+1 capacity. The pistol is finished in black, and the included factory steel magazines are marked Made in Italy and Made in USA.