The Maxim Defense PDX-SD is a suppressor-tuned short-barreled rifle built around a compact 5.5-inch barrel and chambered in .300 AAC Blackout. It is engineered as a purpose-designed platform that integrates a PDX-specific DSX suppressor concept intended to manage gas blowback and cyclic rate. The design emphasizes user serviceability and maintenance features suitable for a short firearm application. Finished in Flat Dark Earth, the PDX-SD combines a compact profile with components intended for regular field use.
Key Specifications
- The action is Semi-Auto.
- The barrel measures 5.5 inches.
- The caliber is .300 AAC Blackout.
- The magazine capacity is 20 rounds.
- The model designation is PDX-SD.
- The grip material is Polymer.
- The finish/color is Flat Dark Earth.
- The product type is SBR.
- This is provided as a suppressor-tuned DSX design specific to the PDX, with user-serviceable features.
The PDX-SD is intended for users who prioritize a compact, serviceable short-barreled platform with suppressor-oriented engineering. Its short profile and suppressor-tuned characteristics make it well suited to applications where a compact, controllable rifle is desired while retaining the terminal characteristics of the selected caliber. Built with serviceability and reduced gas blowback in mind, the PDX-SD offers a balance of compact handling and practical maintenance features.
