The SIG Sauer P320-M17 is a modern striker-fired pistol built for duty and range use. It’s designed for shooters who want a proven platform with military heritage and modular flexibility. Based on the U.S. Army’s M17 service pistol, it offers consistent performance right out of the box. We’ve noticed these tend to sell quickly on weekends, often as a range day upgrade for enthusiasts.
Key Features
- Striker-fired action with consistent trigger pull.
- Modular FCU (Fire Control Unit) allows for easy caliber and grip module swaps.
- Optics-ready slide with removable rear sight plate for mounting red dots.
- Loaded chamber indicator and manual safety for enhanced control.
- Includes two 17-round magazines and SIGLITE night sights.
Specifications
| Model | P320-M17 |
| Caliber | 9mm |
| Barrel Length | 4.7″ |
| Overall Length | 8.0″ |
| Height | 5.5″ |
| Weight (measured) | 6.1 oz |
| Capacity | 17+1 |
| Sights | SIGLITE Night Sights |
Frequently Asked Questions
Is this the same as the military M17?
This is the commercial version of the U.S. Army’s M17 service pistol. It shares the core design, manual safety, and optics-ready slide, but is sold through civilian channels.
What does ‘optics-ready’ mean for this model?
The slide is cut with a removable rear sight plate. Removing it reveals a footprint compatible with several popular micro red dot sights (like the SIG ROMEO1PRO), allowing for a direct mount without sending the slide out for milling.
Can I change the grip size?
Yes. The modular design means the serialized Fire Control Unit can be dropped into different SIG P320 grip modules, which are sold separately. This lets you customize grip size and texture without a new firearm transfer.
✅ Same-day shipping from Rockford, IL
✅ Discreet packaging
✅ 30-day returns
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