Matador Arms MAT916 Upper Reciever FDE 23.5in

Matador Arms MAT916 Upper Reciever FDE 23.5in. 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 durability. With an AR-15 Lower Receiver it requires our Mag-X magazine conversion kit or equivalent type product such as Endomags. Specifications for Matador Arms MAT916 Upper Reciever: Manufacturer: Matador Arms Caliber: 9mm Luger Overall Length: 15 in Barrel Length: 23.5 in Barrel Profile: Slim Barrel Twist Rate: 1-10 Threads per Inch: 1/2x28 Muzzle Device: No Finish: Anodized Fabric/Material: 4140 Nitrided Steel Handguard Length: 15 in Gun Rail: MIL-STD 1913 Gun Make: SIG Sauer Colt Glock Gun Model: Heckler & Koch MP5 Features of Matador Arms MAT916 Upper Reciever Non-reciprocating steel charging handle (ambidexterous) 4140 Nitrided steel bolt and action parts 6061-T6 anodized upper receiver 4150 Lightweight Nitrided Barrel 16in long 1:10 twist 1/2x28 threads NATO 1913 Spec top rail Compatible with LRBHO (Last Round Bolt Hold Open) lower receiver Ready to run with a Suppressor right out of the box Package Contents: Matador Arms MAT916 Upper Reciever What firearm models does the manufacturer say Matador Arms MAT916 Upper Reciever is compatible with? The manufacturer suggests that Matador Arms MAT916 Upper Reciever is compatible with Heckler & Koch MP5Matador Arms 850045441296: MAT916 Upper Reciever FDE 23.5in