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HM Defense

HM Defense DefenderM5 Monobloc Rifle - HMB Bolt - Monobloc Barrel 5.56 NATO / 223 Rem

Product Code : DefenderM5

$1,295.00

Mfg Item #: DefenderM5

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Available Online
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DefenderM5 Monobloc Rifle - HMB Bolt - Monobloc Barrel 5.56 NATO / 223 Rem

 

PLEASE READ! Current lead time is 30 days. 30 days from the time payment posts in our system.

 

Barrel:

The DefenderM5 features HM patented MONOBLOC HBAR barrel with an integrally machined gas block. Chambered in 5.56 NATO/223 Rem, the 4150 Chromoly barrel is 16 inches in length, features a 1:8 twist ratio and a mid-length gas system. All HM Defense barrels are match grade, tripled honed and button rifled for superior accuracy.

 

Rail:

The custom HM Defense 10 3/8” inch, free float 1913 Picatinny rail is CNC machined from 6061-T6 aircraft grade aluminum. The rail is compatible with Magpul M-LOK mounting system.

 

Lower receiver:

The DefenderM5 features a Mil-Spec Forged 7075-16 Lower Receiver with Type Ill Class Il hard-coat black anodized finish.

 

Upper Receiver:

DefenderM5 features a Mil-Spec Forged 7075-16 M4 Upper Receiver with Type Ill Class II hard-coat black anodized finish, M4 Feed Ramps, and a 1913 Picatinny rail flat top.

 

Components:

HM Defense rifles include a M16 bolt carrier group with patented HMB bolt and Mil-Spec components, including the trigger & fire control group, charging handle and buffer tube/spring. Custom Trigger Guard, Monobloc Dust Cover, CNC Machined Muzzle Brake

 

End Plate:

HM Defense rifles feature a custom Quick Disconnect (QD) end plate.

 

Furniture:

Rifle features a black Mil-Spec HM stock and enhanced grip.

 

Magazine:

A magazine is included with each rifle.

 

HM MONOBLOC Barrel:

  • Gas block integrally machined as part of barrel
  • Eliminates gas block installation and alignment
  • Improved barrel harmonics for better accuracy
  • Dependable performance in severe conditions

    Features:
  • Barrel: Available on DefenderM5, DefenderM5L, RaiderM5 (5.56 NATO/223 Rem) and AR-10 (308 WIN.) models, with a mid-length and rifle gas systems. All HM Defense barrels are match grade, tripled honed and button rifled for superior accuracy. Barrels are manufactured in 4150 Chromoly.
  • Barrel Extension: All HM barrels feature Mil-Spec M4 feed ramps, properly installed and head spaced with gauges.
  • Gas Block: The HM MONOBLOC gas block is machined from the solid barrel blank and is an integral part of the barrel.
  • Barrel Length: HM MONOBLOC barrels are produced in 12.5 and 16 inch length with a threaded muzzle.

    HMB Battle Ready HM Bolt

    Existing Mil-Spec M16, & AR-15 bolts have a natural weak point where the cam pin hole passes through the bolt. Under extensive use, including the stress of combat, the bolt can fail at this critical location.

    The HMB™ bolt by HM Defense eliminates the pass through cam pin hole and replaces it with a cam pin socket and tapered cam pin design. This new patented design eliminates the natural weak point of Mil-Spec bolts by significantly increasing the amount of metal (and strength) at the cam pin location. The result - No more broken bolts! HMB" bolt cross section

    Additional benefits of the HMB design include the elimination of the cam pin hole staking, reduction in potential cam & firing pin contact and a smoother operation of the Bolt Carrier Group (BCG).

    Best of all, the HMB™ is 100% compatible with Mil-Spec M16, & AR-15 BCGs and can be installed as a drop-in bolt replacement in any existing M16 or AR-15 rifle. Available on GuardianF5, DefenderM5, DefenderM5L and RaiderM5 Models.

Determined at checkout.