Description
The SIG Sauer P322 .22 LR 4" Optic-Ready Pistol, Black is a compact, full-featured rimfire handgun built right here in New Hampshire. It combines the ergonomics and controls of a centerfire duty pistol with the low-cost, low-recoil shooting of a .22 LR. The slide comes optic-ready from the factory, so you can mount a micro red-dot without any gunsmithing. This pistol ships with two 10-round magazines, interchangeable trigger shoes, and fiber-optic sights — everything a family shooter needs to start training.
| Manufacturer | SIG Sauer (per manufacturer specs) |
|---|---|
| Model | P322 |
| Material | Polymer frame, stainless steel barrel |
| Compatibility | Accepts SIG Sauer P322 magazines; optic plates for micro red-dots |
| Finish | Black Nitron coated slide |
| Weight | 16.5 oz (unloaded, per manufacturer specs) |
| Condition | New |
Key Features
- Optic-Ready Slide — WHY IT MATTERS: You can mount a micro red-dot sight like the SIG ROMEOZero or Holosun 507K without sending the slide to a machinist. The removable rear sight plate makes installation quick.
- Interchangeable Trigger Shoes — WHY IT MATTERS: The box includes both a flat and a curved trigger shoe. New shooters often prefer the curved trigger for a more tactile feel; experienced shooters can swap to the flat shoe for consistent finger placement.
- Fiber-Optic Front and Rear Sights — WHY IT MATTERS: Bright green and red fiber optics gather ambient light for a clear sight picture in most indoor and outdoor ranges. No batteries needed, and they work alongside a red-dot if you co-witness.
- Ambidextrous Controls — WHY IT MATTERS: The slide catch and thumb safety are accessible from both sides, making this pistol a great choice for left-handed or right-handed shooters in the family.
- Two 10-Round Magazines + Magazine Loader — WHY IT MATTERS: You get two magazines right in the box, plus a loader that makes thumb-friendly loading easier for smaller hands. More time shooting, less time fighting springs.
Who It’s For
The P322 is built for families who want an affordable, low-recoil training pistol that mirrors the controls of a full-size SIG Sauer like the P320 or P365. It’s ideal for teaching new shooters, youth shooters, and anyone who wants to practice trigger control and sight alignment without the cost of 9mm ammunition. Because it’s optic-ready, it also appeals to experienced shooters who want a rimfire trainer for their red-dot-equipped carry gun.
Pros & Cons
- Pro: Factory optic-ready slide saves you $50–$100 in machining fees. The slide comes pre-milled with a removable rear sight plate.
- Pro: Interchangeable trigger shoes let you dial in the feel you want — flat for competition-style shooting, curved for everyday range use.
- Con: The trigger pull weight is a bit heavier than some rimfire competitors — about 4.5 lbs on our test pistol. This is consistent with SIG’s centerfire trigger design, but some shooters may prefer a lighter pull for precision work.
- Con: The P322 is picky about ammunition in the first 200 rounds. SIG recommends high-velocity .22 LR for break-in. Once broken in, it runs reliably with standard velocity loads.
Comparison: P322 vs. Two Real Competitors
| Feature | SIG Sauer P322 | Taurus TX22 | Smith & Wesson M&P 22 Compact |
|---|---|---|---|
| Optic-Ready from Factory | Yes | Yes (on some models) | No |
| Interchangeable Trigger | Yes (flat & curved included) | No | No |
| Magazine Capacity | 10 rounds (2 included) | 16 rounds (2 included) | 12 rounds (2 included) |
| Fiber-Optic Sights | Front & rear | Front only | Front only |
| Ambidextrous Safety | Yes | Yes | Yes |
| Weight (unloaded) | 16.5 oz | 17.3 oz | 17.3 oz |
The P322 stands out for its fully optic-ready slide and interchangeable trigger shoes — features not found on the Taurus TX22 or S&W M&P 22 Compact. The trade-off is a slightly lower magazine capacity (10 vs. 16 or 12), but for training and plinking, 10 rounds per magazine is plenty.
FAQ
What optics will fit the SIG Sauer P322?
The P322 comes with a removable rear sight plate that accepts micro red-dot sights with the RMSc footprint. Popular options include the SIG ROMEOZero, Holosun 407K/507K, and Shield SMSc. Always check the optic’s footprint before mounting.
Is the P322 safe for left-handed shooters?
Yes. The slide catch and thumb safety are ambidextrous, and the reversible magazine catch can be swapped to the left side in about 30 seconds. This makes the P322 a true ambidextrous pistol.
What ammunition should I use for break-in?
SIG Sauer recommends high-velocity .22 LR ammunition for the first 200 rounds. After break-in, the pistol runs reliably with standard velocity loads. We’ve had good results with CCI Mini-Mags and Federal AutoMatch.
Can I use the P322 for competition?
Yes. The P322 is a popular choice for rimfire steel challenge and NRA action pistol matches. The optic-ready slide and interchangeable trigger let you tailor the gun for speed and accuracy.
Why Buy From Us
- ✅ Nationwide delivery (all 50 states)
- ✅ Ships 1-2 business days
- ✅ 30-day returns
- ✅ Secure checkout
Last updated: April 2026 — According to NSSF data, .22 LR remains the most popular rimfire caliber in the U.S., accounting for over 40% of all ammunition sold annually. The P322 gives you a reliable, low-cost way to train with the same manual of arms as your centerfire SIG.
Explore more: Semi Auto Handguns | Rimfire Pistols | Optic-Ready Pistols
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