MasterPiece Arms, manufactures the MPA MAC Line of semi-auto submachine pistols and carbines. The company has announced a new hammer design with disconnect for all MasterPiece Arms weapons. The new hammer design, featuring a spring-loaded disconnect, comes years after MPA began R&D for a better hammer design for all their weapons. The new design that will be shipping on all new MPA weapons starting January 2013 completely eliminates trigger slap, providing a smooth and comfortable firing experience. Trigger slap has been a design characteristic on MAC type weapons since the “closed bolt” function became the requirement back in the 1990’s. Until today, this was an accepted, albeit not desired, feature of this weapon type. The new MPA hammer with disconnect completely eliminates this undesirable characteristic permanently.
The new hammer with disconnect will also be available for existing 9mm, 5.7×28 and .45 ACP MPA models. The new hammer will simply swap out with the existing hammer. This innovation will also work on all Cobray & Leinad weapons. Installation instructions will be available on www.masterpiecearms.com to complete the exchange. The hammer with disconnect replacement kit will MSRP at $39.99