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HM Defense RaiderM556SBR 5.56mm Class III/NFA Short Barreled Rifle with 12.5 Inch Patented MONOBLOC Barrel
NFA Item

    $1,168.00

    Notice: The above pricing is for IOP purchases. For agency sales, please contact us for a quote.
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Vance Outdoors Obetz

4250 Alum Creek Dr.
Obetz, OH 43207

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Product Description

Introducing the HM Defense RaiderM556SBR, a top-of-the-line rifle designed for superior performance in a compact package. Built with quality materials and expert craftsmanship, this rifle is sure to impress even the most discerning shooter.

The RaiderM556 SBR features HM's patented MONOBLOC barrel with an integrally machined gas block. Chambered in 5.56 NATO/.223 Rem, the 4150 chromoly barrel is 12.5" in length, features a 1:8 twist ratio, ½-28 TPI threaded muzzle and a mid-length gas system. All HM Defense barrels are match grade, honed and button rifled for superior accuracy. The black cerakote finish not only looks sleek, but also provides added durability.

The custom HM Defense 10 3/8", free float 1913 picatinny rail is CNC machined from 6061-T6 aircraft grade aluminum and is compatible with the Magpul M-LOK mounting system. This rail provides ample space for mounting accessories, making it a versatile option for a variety of shooting scenarios.

The RaiderM556 SBR lower receiver is made from Mil-Spec forged 7075-T6 aluminum with Type III Class II hard-coat, black anodized finish. The upper receiver is also made from Mil-Spec forged 7075-T6 aluminum with Type III, Class II hard-coat black anodized finish, featuring M4 feed ramps and a 1913 picatinny rail flat top.

HM Defense SBRs include a M16 bolt carrier group with patented HMB Bolt and Mil-Spec components including the trigger and fire control group, charging handle and buffer tube/spring. The custom trigger guard and Monobloc ejection port cover add to the rifle's overall quality.

The RaiderM556 SR features an HM Defense adjustable Close Quarter Combat (CQB) stock and enhanced grip for added comfort and control during shooting. A magazine is included with each rifle, weighing in at 5lb, 11.5oz without magazine.

For suppressed applications, based on your suppressor, an H2 buffer may be required. The HM Defense RaiderM556SBR is a top-performing rifle that is sure to impress even the most demanding shooters.

Product Specifications

  • Patented MONOBLOC barrel with an integrally machined gas block
  • Chambered in 5.56 NATO/.223 Rem
  • 4150 chromoly barrel
  • 12.5" length
  • 1:8 twist ratio
  • ½-28 TPI threaded muzzle
  • Mid-length gas system
  • Match grade honed and button rifled for superior accuracy
  • Black cerakote finish
  • Custom HM Defense 10 3/8" free float 1913 picatinny rail
  • CNC machined from 6061-T6 aircraft grade aluminum
  • Compatible with Magpul M-LOK mounting system
  • Mil-Spec forged 7075-T6 lower receiver
  • Type III Class II hard-coat black anodized finish
  • Mil-Spec forged 7075-T6 M4 upper receiver
  • Type III Class II hard-coat black anodized finish
  • M4 feed ramps
  • 1913 picatinny rail flat top
  • M16 bolt carrier group with patented HMB Bolt
  • Mil-Spec trigger and fire control group
  • Charging handle and buffer tube/spring
  • Custom trigger guard
  • Monobloc ejection port cover
  • Adjustable Close Quarter Combat (CQB) stock
  • Enhanced grip
  • Magazine included
  • Weighs 5lb 11.5oz without magazine
  • For suppressed applications an H2 buffer may be required based on suppressor

Customer Comments

Customer Reviews

(5 out of 5) Best patrol rifle available
by from Mason, OH on

This model is my number one recommendation for departments looking for patrol rifles. It’s the perfect balance of performance and reliability in a compact package. The quality and accuracy, combined with its compact size, make it perfect for getting in and out of a vehicle, or working within buildings whilst still allowing for mid range accuracy.

(5 out of 5) Raider 12.5 SBR
by from Harrison, Ohio on

Great rifle in a compact package. This rifle is a perfect size for a patrol rifle. While utilizing the Stealth as my general patrol rifle, I have a 12.5 built out for an entry gun on Swat. Pairing this rifle with a suppressor will give you a weapon system that is reliable and built to last. I would pick any monobloc HM Defense rifle over the competitors; Daniel Defense, Knights, Colt and BCM any day of the week.