California delivery
Description
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.
Specifications
| Action | .223 REM/5.56 NATO |
|---|---|
| Caliber / Gauge | .223 REM/5.56 NATO |
| Barrel length | 16" |
| Sights | Optic Ready |
| Twist rate | 1:8" |
| Barrel finish | Black Cerakote |
California compliance
California requires this item to be delivered through a licensed dealer when it ships to a California address. Outside California it ships direct to you.
HM Defense 16MBUP556 MonoBloc Upper 223 Rem, 5.56x45mm NATO 16″ Black Cerakote Barrel, 7075-T6 Aluminum Black Anodized Receiver, 15″ M-LOK Free-Float Handguard for AR-15
In stock at our warehouse — ready to ship
It's not in our Napa cases today, but it's in stock at our warehouse and ready to ship. You complete the purchase and pick it up at the counter, same as anything else — we text you when it lands.
Ships direct to you outside California. For a California address this item must go to a licensed dealer — you'll choose one at checkout, or pick it up at our counter.





