The HM Defense RaiderMC 556 pistol in 5.56 NATO (brand part no. HMP15FMB556C) pairs a 9.5-inch match-grade Monobloc barrel with an integrally machined gas block for a rigid, accurate short-barrel platform. HM Defense builds the pistol on forged aluminum upper and lower receivers with an 8.5-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 RaiderMC 556 favors shooters who want a short, rigid 5.56 platform for close-quarters use.

Key Specifications

• The chambering is 5.56 NATO, also rated for .223 Remington.
• Magazine capacity is 30+1 rounds.
• The barrel measures 9.5 inches, a match-grade Monobloc design with an integrally machined gas block.
• The free-floating handguard rail measures 8.5 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

What is the barrel construction on this pistol? A match-grade Monobloc barrel with an integrally machined gas block for rigidity and accuracy.

Are the receivers forged or billet? Forged aluminum, both upper and lower.

Does the brace adjust for length? Yes, the HD Defense brace adjusts for close-quarters use.

Buy the HM Defense RaiderMC 556 Pistol

A rigid Monobloc barrel, forged receivers, and a full M16-pattern bolt carrier group make this RaiderMC 556 a serious short-barrel 5.56 platform. Order it from our Lubbock, Texas gun shop for fast, insured shipping to your FFL.