The Charter Arms Mag Pug & Pit Bull Combo is a compact double/single-action revolver that ships with two cylinders — one chambered for .357 Magnum/.38 Special and one for 9mm — giving the owner meaningful flexibility in ammunition choice from a single platform. The steel frame keeps it durable while the 2.2" barrel and 23.0 oz. weight make it a practical carry option. 
 

Key Specifications 

• Manufacturer: Charter Arms 
• Family: Mag Pug Series 
• Model: Mag Pug & Pit Bull Combo 
• Type: Revolver 
• Action: Double / Single Action 
• Caliber/Gauge: 357 Magnum | 38 Special | 9mm 
• Finish: Black Passivate (Finish Type: Black) 
• Frame: Steel Frame 
• Stock/Grips: Classic Walnut Grips (Grip Type: Synthetic) 
• Barrel Length: 2.2 inches 
• Capacity: 5 rounds 
• Weight: 23.0 oz. 
• Sights: Fixed Sights 
• Safety Features: Transfer Bar 
• Additional Info: Includes Additional Cylinder 
• Manufacturer Model No.: 13920 
• UPC Code: 678958139204 
   

Features 

The transfer bar safety means the gun won't fire from an impact unless the trigger is pulled through — a standard and reliable safety approach for revolvers used in carry roles. Fixed sights are straightforward: nothing to snag, nothing to knock out of adjustment. 
 
Having both cylinders means you can carry .357 Magnum when power matters most, or swap to 9mm when that's what's available or when you want cheaper practice ammunition. The walnut grips fill the hand reasonably well for a snub-nose frame. Five-round capacity is standard for a revolver this size.

Buyers of the Mag Pug & Pit Bull Combo tend to focus on the dual-cylinder concept as the main selling point, and most find it delivers what it promises. Being able to run .357 Magnum, .38 Special, and 9mm from one gun is genuinely useful — particularly for shooters who reload or buy in bulk for one caliber and want flexibility for the other.

Compact size and carry weight get consistent praise. At 23.0 oz. it's substantial enough to feel solid, but not so heavy that it becomes a burden. People carrying it concealed in a pocket holster or IWB report it disappears reasonably well given the steel frame.

The trigger pull in double action is on the heavier side, which is the most common technical complaint. It doesn't affect reliability, but some shooters find it affects first-shot accuracy under stress until they've trained with it. Recoil from .357 Magnum in a 2.2" barrel is sharp — noticeable more than in a larger-framed gun — though that's a physics reality for any compact .357.

Build quality sits below premium brands like S&W or Ruger, and some users note the finish shows wear earlier than expected. For the price, though, Charter Arms positions this as a working-class carry gun, and on that basis most owners see the value.