Maxim Defense PDX Pistol 7.62 x 39mm 5.5in Black

About this product

The Maxim Defense PDX is a compact AR-style pistol chambered in 7.62 x 39mm and designed for close-quarters applications. It measures approximately 18.75 inches overall and features a 5.5-inch threaded barrel, a pistol brace, and an anodized aluminum construction for durable, lightweight performance. The PDX incorporates Maxim’s SCW system — a 4-inch brace system with an integrated bolt carrier group and interchangeable buffer weights — for improved recoil control and follow-up shots. The firearm ships with the Maxim HATEBRAKE muzzle booster installed under the handguard to reduce perceived recoil and redirect blast forward.

Key Specifications

• The caliber is 7.62 x 39mm.
• The barrel measures 5.5 inches and is threaded.
• The magazine capacity is 20 rounds.
• The action is Semi-Auto.
• The stock type is a Pistol Brace.
• The material is Aluminum with an Anodized finish.
• The product type is classified as an AR.
• The color is Black.
• The handguard is an MDX two-piece M-LOK style.
• Included accessory: HATEBRAKE muzzle device.

Balanced for compact handling without sacrificing controllability, the PDX provides a pragmatic option for shooters seeking a short, robust AR-style pistol in 7.62 x 39mm. Its combination of the SCW recoil system, threaded short barrel, and solid aluminum construction makes it well suited for range work, close-quarters practice, and applications where compact dimensions and dependable performance are priorities.