The Sig Sauer P322 Optic/Suppressor Ready is a .22 LR single-action semi-automatic pistol with a 4-inch barrel, 10+1 capacity, and a black polymer frame with black anodized slide. Weight is 17 oz. The slide is optic-ready with a detachable rear sight plate compatible with RMS/SMS optics, and the barrel ships with a threaded adapter for suppressor attachment. 
 
Key Specifications 

• Brand: Sig Sauer 
• Model: P322 
• Caliber: .22 LR 
• Action Type: Single Action (SAO) 
• Barrel Length: 4 inches 
• Capacity: 10+1 rounds 
• Weight: 17 oz (approximately 1.1 lbs) 
• Finish: Black Polymer Frame with Black Anodized Slide 
• Grip Material: Black Polymer 
• Sights: Fiber Optic Front & Adjustable Rear 
   
  Detailed Features 
   
• The detachable rear sight plate accepts RMS/SMS compatible optics for direct red dot mounting. 
• Threaded barrel adapter included for suppressor or muzzle device attachment without additional hardware. 
• Interchangeable flat and curved trigger shoes let you match the trigger geometry to your technique. 
• Fiber optic front and rear sights provide fast acquisition, especially in variable light. 
• Reversible magazine catch and ambidextrous manual safety support both right- and left-handed shooters. 
   
  Usage Scenarios 
  At the range the platform handles high-volume training sessions cheaply, given .22 LR ammo costs. In competitive rimfire shooting, the optic-ready slide and adjustable trigger shoes allow meaningful customization for different formats. For pest control or small game the suppressor-ready barrel makes quiet operation practical.

The Sig Sauer P322 Optic/Suppressor Ready .22 LR draws positive feedback across most areas. Accuracy is frequently praised - most owners report good performance at typical .22 pistol distances, and the platform gets used regularly for both target practice and small game.

The optics-ready slide is a strong selling point for the platform. Owners who have mounted red dots find the installation straightforward and the result accurate.

Suppressor-ready capability generates clear enthusiasm, with users noting the P322 pairs well with a .22 suppressor for low-noise shooting. Ergonomics and comfortable grip design come up often as contributors to extended session enjoyment.

Reliability is rated positively by most, with the caveat that premium ammunition performs more consistently than budget bulk packs. Early production batches had some quality control concerns that appear to have been addressed in later runs. Some owners feel aftermarket accessories for the P322 are more limited compared to longer-established .22 platforms.

For training, rimfire competition, and suppressed plinking the P322 is broadly endorsed.