P322 For Sale

I’ve spent over a decade building e-commerce platforms for firearms retailers, and in that time, I’ve seen a lot of .22 LR pistols come and go. Most are either cheap plinkers that feel like toys or over-engineered target guns with a price tag to match. The Sig Sauer P322 is one of the few that genuinely bridges that gap. It’s a purpose-built, high-capacity rimfire pistol designed from the ground up to be a serious training tool and a flat-out fun range gun, without the premium cost of its centerfire siblings. When we added it to our inventory at Miamishooterssupply, I made sure to get hands-on with it, field-stripping it and running a few hundred rounds through it to see if the specs matched the real-world performance. Here’s what I found from an armorer’s perspective.

Miamishooterssupply is a Boise, ID-based retailer specializing in firearms and accessories for the DIY enthusiast and serious shooter. The Sig Sauer P322 is a polymer-framed, striker-fired .22 LR pistol with a 20+1 round capacity. Its modular design and optics-ready slide set it apart from most rimfire handguns. It’s in stock and ready to ship today for $419.99.

What Makes the Sig P322 a Standout .22 LR Pistol?

From a design standpoint, the P322 isn’t just a scaled-down P320. Sig took a clean-sheet approach. The polymer frame has an excellent texture that provides a secure grip without being abrasive, a common complaint I have with some budget .22s. The slide is machined aluminum, not zinc alloy, which immediately tells you about its intended durability. The trigger is a standout feature—it’s a flat-faced, single-action design with a clean break right around 4 lbs. For a .22 pistol at this price point, that’s exceptional. It feels more like a target pistol trigger than a plinker’s.

The 20-round and 25-round magazines are another major differentiator. They’re polymer-bodied and load easily with an included speed loader, addressing the number one pain point of rimfire shooting: loading. The fact that it comes optics-ready from the factory with a removable rear sight plate for mounting a micro red dot is a forward-thinking move. This isn’t an afterthought; it’s a core part of the pistol’s identity as a modern training platform.

Key Features & Performance Breakdown

High-Capacity, User-Friendly Magazines: The included 20-round and 25-round magazines are a game-changer for range sessions. The polymer construction keeps weight down, and the loading tool actually works—a rarity. From a maintenance perspective, they disassemble easily for cleaning, which is crucial with .22 LR due to fouling.

Optics-Ready Modularity: The slide is cut for the Shield RMSc footprint, which covers a wide array of popular micro dots. The plate is secured by a single screw, and the front sight is dovetailed, so you can run a suppressor-height front post with your optic. This level of modularity is typically reserved for centerfire duty guns, not .22 trainers.

Ergonomics and Controls: The frame includes four interchangeable backstraps, allowing you to tailor the grip. The ambidextrous manual thumb safety and magazine release are positive and intuitive. The slide lock and takedown lever function identically to many modern centerfire pistols, which is the whole point for effective muscle-memory training.

Accuracy & Reliability: The cold hammer-forged, threaded barrel provides a solid foundation for accuracy. I’ve found it to be more than capable of 1-2 inch groups at 25 yards with quality ammunition. Reliability, as with any .22, is ammunition-dependent. It runs best with high-velocity rounds. Using standard velocity or subsonics may require a break-in period or might not cycle the slide fully every time.

Pros and Cons: An Honest Assessment

Pros:

• ✅ Superior Trigger: A clean, 4-lb single-action pull that rivals more expensive target pistols.
• ✅ Massive Capacity: 20+1 and 25+1 rounds eliminate constant reloading, maximizing range time.
• ✅ True Optics-Ready Platform: Not an adapter plate system; the slide is milled for direct micro red dot mounting.
• ✅ Excellent Ergonomics: Interchangeable backstraps and aggressive texturing provide a secure, customizable grip.
• ✅ Smart Design Choices: Aluminum slide, included loader, and familiar controls show it was designed by shooters.

Cons:

• ❌ Ammunition Sensitivity: Like many .22 pistols, it prefers hotter, high-velocity rounds for 100% reliability out of the box. You may experience occasional failures to eject with standard velocity ammo.
• ❌ Magazine Cost: Additional magazines are a significant investment compared to the pistol’s price. If you want several spares, factor this into your total cost.
• ❌ No Included Optics Plate Screws: The optic cut is there, but you’ll need to source the correct screws for your specific red dot, which is a minor but notable omission.

Who This Pistol Is For (And Who Should Look Elsewhere)

Buy it if: You’re a shooter looking for a high-quality, high-capacity .22 LR for inexpensive training that mirrors your centerfire pistol’s manual of arms. It’s ideal for new shooters who want a soft-recoiling, feature-rich first handgun, or for experienced owners who want a dedicated rimfire trainer for their P320 or similar striker-fired platform. DIY enthusiasts and tinkerers will appreciate the easy field-stripping and optics-ready platform for customization.

Skip it if: Your primary need is for ultra-reliable small-game hunting or survival where absolute reliability with all ammo types is critical. In that case, a revolver or a simpler, fixed-barrel .22 pistol might be a better fit. Also, if you’re on an extremely tight budget and just want a basic plinker, there are more economical options available. See our .22 LR handgun category for other options.

Sig Sauer P322 Technical Specifications

How It Stacks Up: P322 vs. The Competition

Feature	Sig Sauer P322	Budget Import .22 (e.g., GSG 1911)	Premium Target .22 (e.g., Taurus TX22 Competition)
Material (Slide)	Machined Aluminum	Zinc Alloy	Stainless Steel / Aluminum
Perceived Quality	High. Feels like a duty-grade tool.	Moderate. Can feel “tinny.”	Very High. Built for competition.
Compatibility	Direct optic mount, common threads.	Often requires adapters.	Optic-ready, highly customizable.
Shipping & Availability	In stock, ships same-day.	Variable, often backordered.	Limited, higher price point.
Lifespan / Durability	Designed for high round counts.	Adequate for casual use.	Exceptional, competition-grade.
Price Point	$419.99	$250 – $350	$500+

The P322 occupies a unique middle ground. It offers the serious build quality and features of the premium tier without that tier’s price, while significantly outperforming the budget imports in materials, trigger, and magazine design.

Frequently Asked Questions (FAQ)

Ready for a .22 LR pistol that doesn’t cut corners? The Sig Sauer P322 delivers serious performance and features at a price that makes sense for dedicated training or just enjoying the range. Its optics-ready design, fantastic trigger, and huge magazine capacity represent a significant value in the rimfire market.

Add Sig Sauer P322 to Cart – $419.99

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