HM Defense 16MBUP556L MonoBloc Upper 223 Rem 5.56 NATO 16in M-LOK

The HM Defense 16MBUP556L MonoBloc Upper brings high-performance reliability to AR-15 builds with a 16" Black Cerakote barrel in 223 Remington / 5.56x45mm NATO and a 7075-T6 aluminum Black Anodized receiver, delivering rugged, precise performance for field use or range sessions. This complete upper features a 1:8 twist copper nitrided for consistent accuracy and 4150 Chrome Moly match-grade barrel construction, paired with a 15" M-LOK free-float handguard that provides ample accessory mounting real estate and a long rail for extended optics and lights, all finished in black hard coat anodize for enduring durability. Optic-ready by design, the assembly offers streamlined mounting and quick target acquisition, making it a versatile choice for tactical practice, varmint hunting, or competition setups. HM Defense integrates thoughtful engineering with a MonoBloc upper configuration to enhance rigidity and accuracy while maintaining clean, repeatable chambering and cycling. This upper is ideal for shooters seeking a high-strength platform capable of handling rigorous use with modern ergonomics and a battle-tested finish.