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HM Defense MonoBloc Upper 5.56 NATO / .223 Rem 16" Barrel

The HM Defense MonoBloc offers a reliable, lightweight, and durable finish for your next AR-style rifle build. It comes chambered in 5.56 NATO with a 16 inch barrel. Features include an M-LOK handguard, an optics ready flat-top, and a forward assist. Get this upper today for the best price online from GrabAGun!
$657.99
In stock
SKU
GAG_16MBUP556-129381
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More Information

MonoBloc Upper Features

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.

MonoBloc Upper Specifications

  • Caliber: 5.56x45mm NATO
  • Model: MonoBloc Upper
  • Barrel Length Range: 12" to 12.99"
  • Sights: 16" to 16.99"
  • Handguard Finish: Black Hard Coat Anodized
  • Handguards: 10.37" M-LOK Free-Float
  • Receiver Finish: Black Hard Coat Anodized
  • Receiver Material: 7075 T6 Aluminum
  • Twist: 1:8"
  • Weight: 3.14 lbs
  • Barrel Description: 4150 Chrome Moly Match Grade
  • Barrel Finish: Black Cerakote
  • Barrel Length: 16"
More Information
Barrel Length 16
Caliber 5.56
Condition New in Box
Finish Per Color Black
Manufacturer HM Defense
Manufacturer Part Number 16MBUP556
Model MonoBloc Upper
Type Uppers
UPC 854164007005

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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