Description
The Sig Sauer P322 .22 LR 4″ Optic-Ready Threaded Barrel Black is a compact rimfire pistol built in New Hampshire by SIG Sauer. It ships with two 10-round polymer magazines, a threaded steel barrel with adapter, and an optic-ready slide that accepts SHIE footprint red dots. The price is $429.99, putting it in the sweet spot for EDC trainers, plinkers, and suppressor hosts.
| Manufacturer | SIG Sauer |
|---|---|
| Model | P322 |
| Material | Steel barrel, polymer frame |
| Compatibility | SHIE footprint optics, 1/2×28 threaded barrel |
| Finish | Black Nitron slide, black polymer grip |
| Weight | 17.2 oz (empty, per manufacturer specs) |
| Condition | New |
Key Features
- Optic-Ready Slide – Removable rear sight plate lets you mount a red dot without milling. Why it matters: you can switch between irons and dot in under a minute, keeping your EDC zero consistent.
- Threaded Steel Barrel with Adapter – 1/2×28 threads with included adapter for suppressors or compensators. Why it matters: .22 LR suppressed is Hollywood-quiet, and the adapter means you can run most .22 cans out of the box.
- Two 10-Round Polymer Magazines – Each holds 10 rounds, with a clear loading window. Why it matters: you get a backup mag for the range or a reload in a training class, and the window lets you see your round count at a glance.
- Interchangeable Flat and Curved Trigger Shoes – Swap triggers without a gunsmith. Why it matters: match your trigger feel to your carry or competition preference in seconds.
- Fiber Optic Front and Adjustable Rear Sights – Green fiber front, black adjustable rear. Why it matters: fast acquisition in daylight, and you can dial in elevation/windage for your specific load.
Who It’s For
The P322 is for daily carriers who want a trainer that matches their centerfire pistol’s ergonomics and controls. It’s also for suppressor enthusiasts who want a host that doesn’t break the bank, and for new shooters stepping into the EDC world with a reliable rimfire.
Pros & Cons
- Pro: Optic-ready out of the box with SHIE footprint – no adapter plates needed for most popular dots.
- Pro: Threaded barrel with adapter saves you $50-80 over buying aftermarket.
- Con: The trigger reset is a bit long compared to aftermarket upgrades – you may want to swap in a flat shoe for a crisper feel.
Comparison
| Feature | Sig Sauer P322 | Zev Technologies OZ9 | Geissele Automatics Super 22 |
|---|---|---|---|
| Caliber | .22 LR | 9mm | .22 LR |
| Optic Ready | Yes (SHIE footprint) | Yes (RMR) | No |
| Threaded Barrel | Yes (1/2×28, adapter included) | Optional | Yes (1/2×28) |
| Capacity | 10 rounds | 15+ rounds | 10 rounds |
| Price | $429.99 | $1,200+ | $550+ |
FAQ
What is the barrel length and twist rate?
The barrel is 4 inches long with a 1:16 twist rate, per SIG Sauer specs. This stabilizes standard 36-40 grain .22 LR rounds well.
Does the P322 come with a threaded barrel adapter?
Yes, it ships with a 1/2×28 threaded barrel adapter already installed. You can remove it if you’re running a direct-thread suppressor.
What optics fit the P322 slide?
The slide is cut for the SHIE footprint, which includes the SIG Sauer ROMEOZero, ROMEOZero Elite, and Holosun 407K/507K. Other SHIE-compatible dots may require a filler plate.
Is this pistol California-legal?
The P322 is not on the California Roster as of April 2026. Check your local laws before ordering.
Trust & Delivery
- ✅ Nationwide delivery to all 50 states (where legal)
- ✅ Ships 1-2 business days from order
- ✅ 30-day return policy on unopened/unused items
- ✅ Secure checkout with 256-bit encryption
Last updated: April 2026
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