Maxim Defense MXM50822 PDX 505-SPS .300 AAC Blackout

The Maxim Defense MXM50822 PDX 505-SPS is a compact AR-style pistol chambered in .300 AAC Blackout intended for controlled range use and close-quarters applications. Its short profile and purpose-built components make it suited to shooters who need a compact, maneuverable platform.

Built around Maxim’s SCW Pistol System, this model emphasizes a streamlined rear interface and reduced weight compared to the stocked versions. The firearm is finished in Arid Brown metal with a matching Arid Brown polymer grip, and it ships optic-ready for modern sighting solutions.

Key Specifications

• The caliber is .300 AAC Blackout.
• The barrel length is 5.50 inches.
• The action is Semi-Auto.
• The capacity is 20 + 1.
• The grip material is Arid Brown Polymer.
• The weight is 5.10 lbs.
• The stock material is Synthetic.
• The sights are Optic Ready.
• The overall length is 18.75 inches.
• The finish is Arid Brown Metal Finish.

Buy the Maxim Defense MXM50822 PDX 505-SPS .300 AAC Blackout online today for a compact, feature-rich AR pistol platform that prioritizes weight savings and a streamlined SCW Pistol System design.