The MasterPiece Arms MPA Defender Pistol Magazine is engineered for 5.7x28mm caliber with a 20-round capacity. Constructed from polymer with a black finish and carrying part number 5770-20RD, this detachable magazine is designed specifically for the MasterPiece Arms Defender semi-automatic pistol platform.
Compatible with all MasterPiece Arms 5.7×28 pistols and rifles, the magazine features a high-tensile steel wire spring and anti-tilt polymer follower that ensure smooth, jam-free feeding and consistent cartridge alignment. Precision-engineered feed lips provide a snug, wobble-free fit, while machined witness holes allow for quick visual round counts. The impact-resistant floor plate can be easily removed for maintenance and cleaning.
Whether you need additional ammunition capacity or are replacing a worn magazine, this MasterPiece Arms 5770 magazine delivers the durability and consistent feeding reliability required in tactical or recreational shooting environments.
