Maxim Defense PDX-SD Suppressed SBR .300 Blackout 5.5" Barrel with PDX-SD 7.62 Suppressor – MXM-47843
The Maxim Defense PDX-SD Suppressed SBR is a factory-built, ultra-compact suppressed Short Barrel Rifle chambered in .300 Blackout. Model MXM-47843 features a 5.5-inch barrel paired with the integrated PDX-SD 7.62 suppressor, MD-SCW stock, ALG trigger, and SDX two-piece handguard. This complete suppressed package delivers exceptional maneuverability, low signature, and reliable performance in a highly portable platform designed for close-quarters operations and tactical applications.
Factory-Suppressed .300 Blackout SBR Platform
The PDX-SD represents Maxim Defense’s commitment to delivering complete, optimized suppressed weapon systems. By integrating the PDX-SD 7.62 suppressor directly with the 5.5-inch barrel, Maxim has created a balanced, reliable suppressed SBR that eliminates the need for aftermarket suppressor mounting and tuning. The .300 Blackout cartridge is perfectly suited for this short-barreled configuration, offering excellent terminal performance at subsonic velocities while maintaining compatibility with standard AR-15 magazines and components.
Key Features of the Maxim Defense PDX-SD Suppressed SBR
- 5.5-Inch Barrel – Ultra-short barrel optimized for suppressed .300 Blackout performance.
- PDX-SD 7.62 Suppressor – Factory-integrated suppressor designed specifically for the PDX platform.
- MD-SCW Stock – Maxim Defense Short Compact Weapon stock for minimal overall length and excellent ergonomics.
- ALG Trigger – Upgraded ALG trigger for crisp, consistent pull and improved accuracy.
- SDX Two-Piece Handguard – Lightweight, modular handguard with superior heat dissipation and accessory mounting options.
- 20-Round Capacity – Reliable magazine capacity in a compact suppressed package.
- Black Finish – Durable, low-visibility finish suitable for professional and tactical use.
- Model Number: MXM-47843
- UPC: 680017478438
Technical Specifications
| Specification | Details |
|---|
| Brand | Maxim Defense Industries |
| Model | PDX-SD Suppressed SBR |
| Model Number | MXM-47843 |
| Caliber | .300 Blackout (300 BLK) |
| Barrel Length | 5.5 Inches |
| Suppressor | PDX-SD 7.62 Suppressor (Integrated) |
| Stock | MD-SCW Stock |
| Trigger | ALG Trigger |
| Handguard | SDX Two-Piece Handguard |
| Capacity | 20 Rounds |
| Finish | Black |
| Best Use | CQB, Suppressed Operations, Vehicle Use, Home Defense, Tactical |
Why Choose the Maxim Defense PDX-SD Suppressed SBR?
The Maxim Defense PDX-SD stands out as a complete, factory-optimized suppressed SBR rather than a collection of aftermarket parts. The integration of the PDX-SD 7.62 suppressor with the short 5.5-inch barrel ensures proper alignment, reliable function, and optimized sound suppression from the start. The MD-SCW stock system dramatically reduces overall length while maintaining a stable shooting platform. Combined with the upgraded ALG trigger and modular SDX handguard, this rifle offers a level of performance and refinement rarely found in factory-suppressed platforms. For users who want a ready-to-deploy suppressed .300 Blackout SBR without the hassle of Form 1 or Form 4 suppressor integration, the MXM-47843 is an outstanding choice.
Ideal Applications
The PDX-SD Suppressed SBR excels in close-quarters battle, vehicle-based operations, and any scenario where a low visual and audible signature is critical. The .300 Blackout cartridge paired with a short barrel and dedicated suppressor provides excellent terminal performance at subsonic velocities while keeping the overall package extremely compact. Tactical professionals, special operations personnel, and serious enthusiasts who require a high-performance suppressed weapon system will find this rifle particularly valuable. The combination of the ALG trigger and integrated suppressor also makes it well-suited for precision suppressed shooting at typical CQB distances.
Build Quality and Performance
Maxim Defense is recognized for producing purpose-built, high-quality firearms and components. The PDX-SD is engineered as a complete system, with every component selected to work in harmony. The MD-SCW stock provides a compact yet stable platform, while the SDX two-piece handguard offers excellent heat management and multiple mounting points. The ALG trigger upgrade delivers a noticeably smoother and more consistent trigger pull compared to standard mil-spec triggers. The integrated PDX-SD 7.62 suppressor is specifically tuned for the 5.5-inch barrel, providing effective sound reduction and flash suppression. This factory-assembled configuration ensures proper timing, reliable cycling, and consistent performance right out of the box.
Experience premium suppressed performance with the Maxim Defense PDX-SD Suppressed SBR. Model MXM-47843 delivers a factory-built .300 Blackout Short Barrel Rifle featuring a 5.5-inch barrel, integrated PDX-SD 7.62 suppressor, MD-SCW stock, ALG trigger, and SDX two-piece handguard in a durable black finish, making it an outstanding choice for suppressed operations, close-quarters work, and tactical applications.
