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.
Ar-15 Super Duty Mod1 5.56x45 Nato Complete Upper Receiver - Ar-15 Super Duty Mod1 5.56x45 10.3'''' Bbl Complete Upper Black Original price was: $1,325.00.$1,171.99Current price is: $1,171.99. 
Sons of Liberty Gun Works L89 AR-15 11.5 inch 223 Wylde Upper Receiver Group Medium Carbine 1-7 A2 Black Original price was: $850.00.$807.50Current price is: $807.50. 
HM DEFENSE MONOBLOC UPPER RECEIVER
Original price was: $743.99.$669.59Current price is: $669.59. 
Additional information
| Brand | Hm Defense & Technology |
|---|---|
| Merchant | Guns.com |
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