The North American Arms Sidewinder is a single-action mini revolver that accepts both .22 WMR and .22 LR cylinders, giving you two caliber options in one gun. It has a 2.5-inch barrel, 5-round capacity, and weighs 7.7 oz (0.5 lbs) in stainless steel with rosewood birdshead grips. 
 

Key Specifications 

• Brand: North American Arms 
• Model Name: Sidewinder 
• UPC: 744253002700 
• Caliber: .22 WMR / .22 LR 
• Action Type: Revolver (Single Action Only) 
• Capacity: 5 Rounds 
• Barrel Length: 2.5 inches 
• Overall Length: 6.31 inches 
• Weight: 0.5 lbs (7.7 oz) 
• Finish: Stainless Steel 
• Grip Material: Rosewood Birdshead 
   

Detailed Features 

 
The dual-cylinder design is the main draw -- you can run .22 LR for cheaper practice, then swap to .22 WMR for more power in the field. The stainless steel build handles outdoor conditions well. At 6.31 inches overall, it disappears in a pocket or rides easily as a backup. The birdshead rosewood grip gives you a secure hold despite the small frame. Post front sight handles basic target acquisition at close range.

The NAA Sidewinder gets consistent praise for its compact size and light weight, making it a natural choice for those who want a backup or deep concealment gun. The dual-caliber cylinder setup is a popular feature -- the ability to swap between .22 LR and .22 WMR is genuinely useful. Stainless steel build quality draws positive comments.

Opinions on shooting experience are mixed: experienced shooters find it manageable, but the small grip is a challenge for newer shooters, and the trigger takes getting used to. Accuracy at close range is generally considered adequate, but the short barrel limits useful distance.

The .22 caliber and five-round capacity generate debate around suitability as a primary self-defense gun; most owners treat it as a backup or range toy rather than a main defensive tool. The price point is regularly cited as fair given the quality.