Colt 1911 Government Model Magazine - .45 ACP - 15 round - Steel - Nickel Plate

Constructed from heat-treated nickel plated steel
With a follower, lock-plate, and base-plate molded from a proprietary DuPont® Zytel™ based black polymer
Spring wound from Chrome-silicon wire and heat-treated for strength and reliability
Includes a sleeve molded from polymer to fill the gap between the bottom of the grip, and the extended base-plate