The .32 NAA is a cartridge/firearm 'system' designed and developed by the partnership of North American Arms and Corbon Ammunition.

The benefits of bottleneck designs include smooth feeding and chambering and simple, robust headspacing.

The cartridge delivers in excess of 1,222 ft/s (372 m/s) velocity to a 60 grain (3.9 gram) proprietary bullet from Hornady.

[3] Extreme Shock Ammunition offers an "Enhanced Penetration Round" that sends a 60 gr.

[4] In fall 2012, Hornady released a .32 NAA Critical Defense load that propels a relatively heavy (thus higher sectional density), 80 grain JHP FTX bullet at 1,000 fps.