HM Defense 16MBUP556L MonoBloc Upper 223 Remk 5.56x45mm NATO 16 Black Cerakote Barrel 7075T6 Aluminum Black Anodized Receiver 15 MLOK FreeFloat Handguard with Long Rail for AR15

The MonoBloc Upper features a HM barrel with an integral machined patented gas block and a carbine gas system. It is also 4150 Chromoly match grade tripled honed and button rifled. Its handguard is freefloating and uses a Picatinny rail Magpul MLOK and machined from 6061T6 aluminum. Upper and Lower receiver are made of 7075T6 aluminum with a hard coat anodized finish. The MonoBloc Upper also includes a patented HMB bolt MilSpec components charging handle and a dust cover with an American Flag.