Update: I would caution everyone to watch the video review of the MPAR-556 Gen II from Full30. The gun looks like it has some problems, and I would be uneasy spending my money on one of these.
MasterPiece Arms announced the addition of a AR-type pistol to the company line up. Â The new MPAR 556 pistol is not-surprisingly based on the company’s MPAR 556 rifle. Â It is chambered for the 5.56 NATO cartridge and will also fire the .223 Remington.
The pistol retains many of the same features found on the rifle version of the gun. Â For example, the MPAR 556 pistol uses a self-regulating, short stroke piston system. Â This means that the pistol version of this gun does not have a buffer tube sticking out of the back of the gun, which is typical with many AR-type pistols. Â It also means, in theory, that the gun will run cooler and cleaner than a direct gas impingement system.