ProMag Smith & Wesson 645, 4506, 4566, 4586 Series .45 ACP Mag 8 Round Blued SMI-12

Description

A single-stack 8-rd magazine for the Smith & Wesson 645, 4506, 4566, and 4586 series of pistols in .45acp. Constructed from heat-treated blued-steel, with a follower, lock-plate, and base-plate molded from a proprietary Zytel based black polymer and using a spring wound from Chrome-silicon wire and heat-treated for strength and reliability.