The Zig M45 is another model of handgun produced by TİSAŞ (pronounced "Tisas"), a Turkish firearm manufacturer. The M45 is part of TİSAŞ's lineup of semi-automatic pistols and is chambered in .45 ACP, a larger caliber known for its stopping power and recoil. The standard magazine usually holds 8+1 rounds of .45 ACP ammunition. The capacity is lower than 9mm pistols due to the larger size of the .45 ACP round.