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The HM Defense 95MBUP556 MonoBloc Upper is a unique, high-quality firearm component. This product is constructed with an HM barrel, which includes a patented, integral machined gas block and a carbine gas system. It is made of 4150 Chromoly, ensuring match-grade performance. It has also been triple honed and button rifled for enhanced accuracy.
The MonoBloc Upper also features a free-floating handguard. This handguard is designed to accommodate a Picatinny rail, Magpul M-LOK, and is machined from durable 6061-T6 aluminum. Both upper and lower receivers are crafted from 7075-T6 aluminum and given a hard coat anodized finish for additional strength.
Other notable features of the MonoBloc Upper include a patented HMB bolt, Mil-Spec components, and a charging handle. To keep your firearm clean and protected, a dust cover featuring an American flag design is also included.