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Adjustable Front Sight
The MPA5700SST Carbine is part of MasterPiece Arms' Defender Series, a selection of semi-automatic pistols and rifles modeled after the famous Mac-10. The MPA5700SST fires FN Herstal's 5.7x28mm, a small-caliber, high-velocity cartridge known for its superior performance in NATO testing. The Defender series side-cocking design makes these guns easy to operate while providing a unique military feel. Every American-made MPA5700SST comes standard with: a picatinny top-rail and aluminum quad-rail forend, an MPA low-profile buttstock, a 16" threaded barrel with a muzzle brake, and an adjustable front sight. The rifle ships in a gun case with a 20-round polymer magazine.