Matador Arms MAT-9K Roller Delayed Bufferless Complete Upper Receiver 9mm Luger 5" Barrel FDE

This Matador Arms MAT-9K Roller Delayed Bufferless Upper Receiver Assembly is side charging, non reciprocating and features Matador Arms patent-pending EZTS "Easy Take-down System" with no tools required to break down the upper for maintenance and cleaning. The 9mm upper is machined for maximum weight reduction, slim profile, and compatibility with bolt catches and lower receivers. The upper is also built with a tapered multi-material 4-piece trunnion system to maintain mechanical accuracy and d