Product Features & Specifications
HM Defense 16MBUP556 MonoBloc Upper 223 Rem/5.56x45mm NATO 16" 4150 Chromoly Barrel w/Black Cerakote Finish, CNC Machined Muzzle Brake, Mid-Length Gas System, 15" Free-Float M-Lok Handguard, M16 Bolt Carrier Group, Anodized 7075-T6 Aluminum
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.
| Brand | HM Defense |
| Model | MonoBloc |
| Caliber | 5.56x45mm NATO |
| Barrel Length Range | 16" to 16.99" |
| Firearm Fit | AR-15 |
| Gun Platform | AR-Style |
| Sights | Optic Ready |
| Barrel Finish | Black Cerakote |
| Muzzle | Muzzle Brake |
| Twist | 1:8" |
| Type | Complete |
| Handguards | 15" M-LOK |
| Receiver Material | 7075-T6 Aluminum |
| Barrel Description | Chrome Moly Match Grade |
| Barrel Length | 16" |
| Receiver Finish | Black Anodized |
| Weight | 4.60 lbs |
| Handguard Finish | Black Hard Coat Anodized |
| SKU | 129381 |
| UPC | 854164007005 |
| MPN | 16MBUP556 |
