Description
The Sig Sauer P322 20 Round holds twenty rounds of rimfire in a magazine that fits a normal pistol grip, which is the trick that made this gun interesting. MAG5 Firearms stocks it with a 4-inch threaded barrel, a factory optic cut and ambidextrous controls throughout.
Twenty Rounds in a Standard Grip
Rimfire magazines are usually either ten rounds or an awkward extended stick. SIG redesigned the geometry so twenty rounds of 22 LR fit inside a grip sized like a centerfire pistol.
On the Sig Sauer P322 20 Round that means longer strings between reloads, which matters more than it sounds like it should when the point of the gun is repetition.
The Sig Sauer P322 20 Round as a Trainer
Most 22 pistols are either dedicated target guns with awkward ergonomics or plinkers that teach nothing useful. This one is laid out like a modern defensive pistol, so grip, trigger press and reloads carry directly over to a 9mm.
Rimfire ammunition costs a fraction of centerfire, which is what makes the round counts that genuinely build skill affordable.
Sig Sauer P322 20 Round Specifications
| Manufacturer | SIG SAUER |
|---|---|
| Model | P322 Compact |
| Part Number | 322CBAS |
| Caliber | 22 LR |
| Capacity | 20+1 Rounds |
| Barrel Length | 4 inches |
| Barrel | Black, Threaded |
| Slide | Black Hard Coat Anodized, Optic Ready, Serrated |
| Optic Footprint | RMSc |
| Frame | Black Polymer with Picatinny Rail |
| Controls | Ambidextrous |
| Action | Blowback, Single Action |
| UPC | 798681640447 |

The Threaded Barrel and Suppressor Use
A factory threaded muzzle takes a rimfire suppressor directly. Twenty-two LR is the quietest common cartridge to suppress, and with subsonic ammunition a suppressed Sig Sauer P322 20 Round is close to hearing-safe.
The threading also accepts a compensator or a thread protector for everyday shooting, and no gunsmithing is required either way.
Sig Sauer P322 20 Round Optic Cut and Controls
The slide is cut for the RMSc footprint, so a micro red dot mounts directly with no adapter plate. Learning to find a dot on the draw is far cheaper with rimfire than with centerfire ammunition.
Safety, magazine release and slide catch all work from either side, which matters on a pistol that gets handed around to new shooters of both handedness.
Availability and Transfer
MAG5 Firearms is a licensed FFL dealer in Pennsylvania. This pistol ships new in the factory case with magazines, lock and documentation, transferred through your local FFL.
Ten-round compliant versions of this same pistol are cataloged separately for capacity-restricted states.
Other Sig Sauer P322 20 Round configurations and rimfire pistols are listed in our handgun catalog. Factory specifications are published by SIG SAUER.
Every Sig Sauer P322 20 Round sold by MAG5 Firearms ships new in the factory packaging with the accessories SIG SAUER includes, and transfers to your chosen FFL. The Sig Sauer P322 20 Round is a regulated firearm and we verify licensing before any order leaves the shop.
Ownership Tips
Before your first range trip, read the owner’s manual and practice loading, unloading, and field-stripping with an empty gun. Clean and lightly lubricate the pistol after each session, paying attention to the slide rails, barrel hood, and breech face, and use quality gun oil sparingly. Inspect magazines for dirt and weak springs, and replace springs on a regular schedule if you carry the gun daily.
For carry or home defense, test the ammunition you plan to rely on with at least a few boxes to confirm reliable feeding. A quality holster that covers the trigger guard, a sturdy belt, and a weapon light round out a dependable setup. Check your state and local rules on magazine capacity and transport before ordering, and we will ship to the licensed dealer of your choice.
Questions Before You Order
Our team handles every order carefully, and we are happy to answer questions about fit, accessories, or the transfer process. Call or email us before you order if you want help choosing the right configuration for your needs.








Reviews
There are no reviews yet.