The Bond Arms Stinger RS is a break-action 9mm derringer chambered in 9mm Luger (9x19 Para). It holds 2 rounds. At 12 oz and 4.5 inches overall with a 2.5" barrel, it's one of the smaller 9mm pistols on the market. 
 

Key Specifications 

• Brand: Bond Arms 
• Model Name: Stinger RS 
• UPC: 855959005930 
• Action: Break Open 
• Caliber: 9mm Luger (9x19 Para) 
• Barrel Length: 2.5 inches 
• Capacity: 2 rounds 
• Weight: 0.8 lbs (12 oz) 
• Finish: Matte Stainless Steel 
• Sights: Blade Front / Fixed Rear 
• Grip Material: Black Rubber 
• Safety Feature: Crossbolt 
   

Detailed Features: 

The break-open action is simple: tip the barrel down, load two rounds, close it. The crossbolt safety blocks the trigger when engaged. Matte stainless finish resists corrosion. The black rubber grip gives a decent purchase for a frame this small. Sights are minimal, blade front and fixed rear, suited for the close ranges where a 2-round 9mm makes sense.

The Stinger RS occupies a specific niche: deep concealment and last-resort backup carry. Buyers who come in with that expectation tend to be satisfied. Its size and weight make it genuinely easy to pocket or ankle-carry in places a larger gun won't fit.

The two-round capacity is the most-discussed limitation. For anyone who considers it a primary carry gun, the capacity is a real constraint. As a backup or deep-concealment piece it's less of an issue, and that framing appears in most positive reviews.

Recoil comes up frequently as more noticeable than expected. A 9mm in a 12 oz frame snaps harder than most carry guns, and shooters not accustomed to derringers often need some practice to stay on target for the second round. Pricing is seen as fair given Bond Arms' U.S. construction, though a handful of reviewers feel similar money buys more capability in a conventional pocket pistol.