North American Arms - Semi-automatics

Semi-automatics

Semi-automatics are made by North American Arms in the following calibers:

• .25 NAA
• .32 ACP
• .32 NAA
• .380 ACP

The .25 NAA cartridge was developed by North American Arms based upon a wildcat bottleneck cartridge using .32 ACP brass necked down to grip a .25 caliber bullet, with the goal of increasing penetration beyond what either a .25 ACP or .32 ACP could do. Likewise, the .32 NAA was developed by North American Arms to increase the penetration of a .32 caliber bullet relative to a .38 ACP cartridge.