The WMD Guns Micro Beast (brand part no. 1-NIBXARPISTOL-5-D) shrinks WMD’s full-size Beast rifle platform into a 22-inch overall package chambered in 5.56 NATO. Built on forged aluminum receivers for a durable, reliable action, this AR-style pistol is intended for close-quarters use, home defense, or as a compact truck gun where a full-length rifle is impractical. It ships with a 10-round magazine and runs the same semi-auto action shooters trust from WMD’s larger Beast rifles, just packed into a footprint that’s easy to store and maneuver. For shooters in the AR pistols category who want WMD Guns reliability without the bulk, the Micro Beast delivers a genuinely compact build.

Key Specifications

• Chambered in .223 Rem/5.56 NATO for widely available ammunition.
• A 5-inch barrel keeps the overall package extremely short and maneuverable.
• Ships with a 10-round magazine for compact, concealable capacity.
• Measures just 22 inches overall, among the shortest AR pistols available.
• Forged aluminum receivers provide a durable, mil-spec-grade foundation.
• Runs a semi-automatic action for reliable, one-trigger-pull-per-shot cycling.
• Finished with WMD’s proprietary NiB-X nickel boron coating, improving corrosion resistance and smoothing the action.
• Runs a pistol-length gas system tuned for reliable cycling off the short 5-inch barrel.
• Upper receiver includes M4 feed ramps for reliable feeding.

Frequently Asked Questions

How short is the Micro Beast overall? Just 22 inches, making it one of the more compact 5.56 AR pistols WMD Guns builds.

What magazine capacity does it ship with? A 10-round magazine is included with the pistol.

What are the receivers made from? Forged aluminum, for a strong, mil-spec-style foundation.

Buy the WMD Guns Micro Beast 5.56 NATO Pistol

A genuinely compact 5.56 AR pistol with forged aluminum receivers, the Micro Beast is built for shooters who want a truck gun or close-quarters platform without giving up reliability. Order it from our Lubbock, Texas gun shop for fast, insured shipping to your FFL.