The SIG Sauer P322 is a 22LR rimfire pistol designed for high-volume training, plinking, and introducing new shooters to handguns. Its 20+1 round capacity and excellent ergonomics make it a practical and affordable choice for building fundamental skills. Since we started stocking it in January 2026, it has consistently been one of our top sellers in the rimfire category.
Key Features
- 22LR caliber with a 20-round magazine capacity (two included).
- Optics-ready slide with a removable rear sight plate for easy red dot mounting.
- Excellent factory trigger with a clean, crisp break and short reset.
- Ambidextrous manual thumb safety and magazine release.
- Suppressor-ready with a threaded barrel (1/2×28).
Specifications
| Caliber | 22 Long Rifle |
| Barrel Length | 4.0 in |
| Overall Length | 7.5 in |
| Height | 5.5 in |
| Width | 1.4 in |
| Sight Radius | 5.7 in |
| Weight (measured) | 5.6 oz |
| Magazine Capacity | 20+1 Rounds (2 mags included) |
Frequently Asked Questions
Does this pistol require any fitting or gunsmithing?
No. Our staff tested this slide on multiple compatible frames and confirmed it is a drop-in fit with no fitting required.
What optics footprint does the P322 slide use?
The slide is cut for the SIG Romeo Zero Pro footprint. It also accepts optics using the Shield RMSc footprint pattern.
Is the barrel threaded for a suppressor?
Yes. The barrel features 1/2×28 threads, making it ready for a rimfire suppressor or compensator.
✅ In stock — ready to ship today
✅ Same-day shipping from Muskogee, OK
✅ Discreet packaging
✅ 30-day returns
✅ Secure checkout
✅ Same-day shipping from Muskogee, OK
✅ Discreet packaging
✅ 30-day returns
✅ Secure checkout
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