The North American Arms Sidewinder is a single-action .22 WMR revolver with a swing-out cylinder, 2.5" barrel, and stainless steel construction. It holds 5 rounds, weighs 7.7 oz (0.5 lbs), has an overall length of 6.31", and ships with a rosewood birdshead grip and fixed post front sight. 
 

Key Specifications 

• Caliber: .22 WMR 
• Action: Single Action Only (SAO) 
• Capacity: 5 rounds 
• Barrel Length: 2.5 inches 
• Overall Length: 6.31 inches 
• Weight: 7.7 oz (0.5 lbs) 
• Finish: Stainless Steel 
• Sights: Fixed Post Front 
• Grip Material: Rosewood Birdshead 
   

Features 

• Single-action .22 WMR with swing-out cylinder for faster loading compared to NAA's standard fixed-cylinder design 
• Stainless steel construction throughout 
• Rosewood birdshead grip 
• Fixed post front sight 
• 5-round capacity

The Sidewinder stands out from NAA's standard mini-revolvers because of the swing-out cylinder, which makes reloading noticeably faster. Owners who've used the fixed-cylinder NAA designs tend to appreciate this. At 7.7 oz it disappears in a pocket or ankle holster.

The 5-round capacity and .22 WMR chambering are the usual points of debate -- shooters disagree on whether the caliber is adequate for self-defense, and most position it as a backup or deep-concealment option rather than a primary carry gun. The loading mechanism gets a mixed reaction from traditionalists who prefer the original NAA design. As a compact utility revolver or collector piece, the sentiment is mostly positive.