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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 free-floating and uses a Picatinny rial, Magpul M-LOK, and machined from 6061-T6 aluminum. Upper and Lower receiver are made of 7075-T6 aluminum with a hard coat anodized finish. The MonoBloc Upper also includes a patented HMB bolt, Mil-Spec components, charging handle, and a dust cover with an American Flag.
| Manufacturer | HM DEFENSE |
| Pricing Unit | EA |
| Model | MonoBloc |
| UPC | 854164007005 |
| SKU | 16MBUP556 |
| Width | 3.8000 |
| Length | 27.3000 |
| Height | 3.0000 |
| Weight | 4.7000 |



FFL Required