The HM Defense MonoBloc Upper provides an option that is lightweight, durable, and reliable for your next AR-style rifle or pistol build. It comes chambered in 5.56 NATO with a 12.5 inch barrel. Features include an optics ready flat-top, an M-LOK handguard, a mid length gas system, and a forward assist. Get this upper today for the best price online from GrabAGun!
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The MonoBloc Upper features a HM barrel with an integral machined patented gas block, and a mid length 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.
MonoBloc Upper Specifications
Brand: HM Defense
Gun Platform: AR-Style
Caliber: 223 Rem
Model: MonoBloc Upper
Type: Complete
Barrel Length Range: 12" to 12.99"
Muzzle: Muzzle Brake
Firearm Fit: AR-15 Pistol
Handguard Finish: Black Hard Coat Anodized
Handguards: 10.37" M-LOK Free-Float
Receiver Finish: Black Anodized
Receiver Material: 7075-T6 Aluminum
Twist: 1:8"
Barrel Description: 4150 Chrome Moly Match Grade
Barrel Finish: Black Cerakote
Barrel Length: 12.50"
More Information
Barrel Length
12.5
Caliber
5.56
Condition
New in Box
Finish Per Color
Black
Manufacturer
HM Defense
Manufacturer Part Number
125MBUP556
Model
MonoBloc Upper
Type
Uppers
UPC
854164007203
WARNING: This product can expose you to chemicals including arsenic, which is known to the State of California to cause cancer. For more information, go to WWW.P65WARNINGS.CA.GOV
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