HM Defense RaiderMC556 AR Pistol .223 Rem/5.56 NATO

The HM Defense RaiderMC556 is a semi-automatic AR pistol chambered in .223 Rem/5.56 NATO. It features a threaded, match-grade Monobloc barrel with an integrally machined gas block, an 8.50-inch free-floating Picatinny rail, and forged aluminum upper and lower receivers. The configuration includes an M16 bolt carrier group, charging handle, buffer tube and spring, adjustable Close Quarter stock, enhanced grip, and magazine.

Key Specifications

• The chambering is .223 Rem/5.56 NATO for broad ammunition compatibility.
• The action is semi-automatic.
• The barrel measures 9.5 inches and uses a threaded, match-grade Monobloc design.
• The free-floating Picatinny rail measures 8.50 inches.
• The listed capacity is 30+1 rounds.
• The firearm weighs 5.50 pounds.
• The upper and lower receivers are made from forged aluminum.
• The grip uses black polymer.
• The stock material is synthetic.
• The listed stock finish is black.

With its compact AR-pistol configuration, integrated gas block, free-floating rail, and included operating components, the RaiderMC556 offers a focused platform for range use and accessory setup. Its combination of practical controls and established .223 Rem/5.56 NATO chambering makes it a straightforward addition to a modern sporting-goods collection.