ACP (Automatic Colt Pistol)

Sig 380 ACP Ammo
Sig 380 ACP Ammo

ACP (Automatic Colt Pistol):

ACP (Automatic Colt Pistol) refers to specific calibers originally designed by John Moses Browning for the Colt Firearms Company. Automatic Colt Pistol (ACP) ammunition includes 25 ACP, 32 ACP, 38 ACP, 380 ACP, and 45 ACP.