Maxim Defense PDX 7.62x39mm Pistol, 5.5-Inch Barrel, 20-Round

The Maxim Defense PDX 7.62x39mm Pistol (part no. MXM-47801) is a purpose-built personal defense weapon chambered in 7.62x39mm, engineered by Maxim Defense for Tier 1 close-quarters operations. At just 18.75 inches overall, this AR pistol is compact enough for vehicle-based work, home defense, or confined urban environments while still delivering full rifle-caliber performance. The SCW brace system integrates a bolt carrier group with interchangeable buffer weights directly into the brace itself, tightening the package without sacrificing reliability. Built for shooters who need a fast-handling, close-range platform they can trust.

Key Specifications

• Chambered in 7.62x39mm, a hard-hitting, widely available rifle caliber.
• Features a 5.5-inch barrel for a compact, maneuverable footprint.
• Ships with a 20-round magazine for solid standing capacity.
• Built on Maxim Defense’s proprietary SCW brace system, a 4-inch brace with an integrated bolt carrier group and interchangeable buffer weights for tuned recoil control.
• Equipped with the Maxim HATEBRAKE muzzle booster, mounted under the handguard to cut recoil and reduce visible flash signature.
• Uses a manual safety selector for straightforward, positive control.
• Built on an AR-pattern platform with semi-automatic operation for reliable cycling.
• Overall length measures just 18.75 inches, ideal for confined or vehicle-based carry.
• The HATEBRAKE is designed to redirect blast forward, making it well suited to suppressed use.

Frequently Asked Questions

What caliber does the Maxim PDX fire? It is chambered in 7.62x39mm.

Does it come with a brace? Yes, it uses the Maxim SCW brace system with an integrated bolt carrier group.

What is the overall length? Just 18.75 inches, making it one of the most compact 7.62x39mm platforms available.

Buy the Maxim Defense PDX 7.62x39mm Pistol

Built for operators who need a compact, reliable 7.62x39mm platform, the Maxim Defense PDX earns its place in the AR pistols lineup through smart engineering, not gimmicks. Order it from our Lubbock, Texas gun shop for fast, insured shipping to your FFL.