Sig P322 Suppressor Ready .22 LR Pistol with Optics Ready Slide - Black

The Sig Sauer P322 is a suppressor-ready and optics-ready .22 LR pistol built for shooters who want a reliable, feature-rich rimfire handgun without compromise. Designed and manufactured by Sig Sauer in New Hampshire, the P322 combines practical ergonomics, modern accessory mounting, and versatile control options in a compact 7-inch package that works equally well for training, plinking, or as a fun backup to your centerfire rotation. Whether you're setting it up with a red dot, threading on a suppressor, or running it stock with irons, the P322 delivers the quality and flexibility you'd expect from Sig at a class-leading price point.

What sets the P322 apart is its thoughtful feature set. The optics-ready slide accepts a ROMEOZero or compatible red dot directly—no adapter plates required. A threaded barrel adapter ships in the box, so you're ready to run a suppressor out of the gate. Ambidextrous controls and a reversible magazine catch make it equally at home in either hand, while interchangeable trigger shoes (flat and curved, both included) let you dial in the feel that works for you. Two 20-round magazines and a magazine loader round out the package.

The P322 feels as good as it shoots. Fiber optic front and rear sights are visible in low light, the manual safety is positive and accessible, and the hard-coat anodized slide is built to take a beating. At just 17.1 ounces with a stainless steel and polymer frame, it's light enough to carry but substantial enough to handle smoothly. The compact polymer grip module keeps weight down without sacrificing control, and the M1913 Picatinny rail gives you room to add a light or other accessories if the mood strikes.

This is the gun for the shooter who wants more than a basic .22—someone who values suppressor compatibility, optics integration, and adjustable ergonomics, but isn't willing to overpay for it. The P322 punches well above its weight in its class.

Key Features

• Optics-ready slide with removable rear sight plate—mount a ROMEOZero directly without adapters
• Suppressor-ready with threaded barrel adapter included in the box
• Ambidextrous controls and reversible magazine catch for left- or right-hand shooters
• Interchangeable trigger shoes in both flat and curved profiles
• Fiber optic front and rear sights for faster sight picture in dim conditions
• 20-round polymer magazines (two included) with dedicated magazine loader
• Hard-coat anodized alloy slide and stainless steel/polymer frame built for durability
• M1913 Picatinny rail for mounting lights or other accessories
• Manual safety for added security

Specifications

Frequently Asked Questions

Can I mount a red dot sight on the P322 without an adapter?

Yes. The P322 features an optics-ready slide with a removable rear sight plate designed to accept optics like the Sig ROMEOZero directly—no adapter plates required. Simply remove the rear sight and mount your red dot.

Does the P322 come ready for a suppressor?

Yes. The barrel is threaded and a threaded barrel adapter is included in the box, so you can immediately mount a compatible suppressor without any additional parts or modifications.

What comes in the box with the P322?

The P322 ships with two 20-round polymer magazines, a magazine loader, a threaded barrel adapter, interchangeable flat and curved trigger shoes, and the pistol itself. Sights are installed and ready to use.

Is the P322 ambidextrous?

The P322 features ambidextrous controls including a reversible magazine catch, making it equally functional for left- and right-handed shooters. The manual safety and other controls are positioned for either hand.