SIG Sauer 322CBRXZE P322 Compact 4" 21-Round Threaded Barrel Pistol

The SIG Sauer P322 Compact .22 LR pistol with optic cut slide and RomeoZero is purpose-built for shooters seeking a low-recoil training platform or recreational firearm with genuine tactical versatility. The 4-inch threaded barrel and 21-round capacity make this compact handgun ideal for high-volume practice, competitive shooting, or function-testing gear systems without the wear and cost of centerfire ammunition. Law enforcement trainers and military personnel have long relied on .22 LR platforms to develop fundamental shooting skills and muscle memory before transitioning to duty-grade pistols.

This P322 Compact features SIG's proven modular design philosophy with a pre-milled optic cut that accepts the included RomeoZero red dot, eliminating the need for aftermarket mounting solutions and ensuring co-witness compatibility with the integrated sights. The threaded 4-inch barrel accepts standard .22 LR suppressors, enabling hearing-safe operation during training sessions—a critical advantage in indoor ranges and low-light environments where noise discipline is mandatory. At 2.72 pounds unloaded, the compact profile and 9.7-inch overall length fit standard Picatinny rails and holster platforms, while the 21-round magazine capacity reduces reload frequency during extended range work or force-on-force scenarios.

This model serves armed professionals, competitive shooters, and serious sport shooters who demand reliability and modularity at a training-friendly price point. The threaded barrel pairs seamlessly with commercially available .22 LR suppressors—verify thread pitch specifications before purchase to ensure proper fit. Owners should confirm their state and local regulations regarding suppressor ownership and magazine capacity; the 21-round configuration may have legal restrictions in certain jurisdictions. The included RomeoZero optic provides immediate duty-ready capability without additional investment, making the P322 Compact an efficient entry point into optics-mounted handgun systems.