HM Defense RaiderM 556 Pistol, 5.56 NATO, 12.5-Inch Barrel

The HM Defense RaiderM 556 pistol in 5.56 NATO (brand part no. HMP15FMB556) pairs a 12.5-inch match-grade Monobloc barrel with an integrally machined gas block for a rigid, accurate platform with a bit more length up front than HM Defense’s shorter Raider variants. HM Defense builds the pistol on forged aluminum upper and lower receivers with a 10.38-inch free-floating Picatinny rail, and the bolt carrier group is a full M16-pattern group with its own charging handle, buffer tube, and spring. An HD Defense adjustable close-quarters brace and an enhanced pistol grip round out the furniture, and the pistol ships complete with a magazine. Among AR pistols, the RaiderM 556 favors shooters who want extra barrel length without stepping up to a full rifle.

Key Specifications

• The chambering is 5.56 NATO, also rated for .223 Remington.
• Magazine capacity is 30+1 rounds.
• The barrel measures 12.5 inches, a match-grade Monobloc design with an integrally machined gas block.
• The free-floating handguard rail measures 10.38 inches.
• The receivers are forged aluminum, upper and lower.
• The bolt carrier group is a full M16-pattern group with its own charging handle.
• The buffer system includes a buffer tube and spring matched to the M16 BCG.
• An HD Defense adjustable close-quarters brace ships installed.
• The grip is an enhanced pistol grip.
• The pistol ships complete with a magazine.

Frequently Asked Questions

How long is the barrel on this pistol? 12.5 inches, a Monobloc design with an integrally machined gas block for rigidity.

What receiver material does it use? Forged aluminum, both upper and lower.

Does the brace adjust for length of pull? Yes, the HD Defense brace adjusts for a comfortable close-quarters fit.

Buy the HM Defense RaiderM 556 Pistol

Extra barrel length, a rigid Monobloc build, and forged receivers make this RaiderM 556 a versatile 5.56 pistol for range and home defense. Order it from our Lubbock, Texas gun shop for fast, insured shipping to your FFL.