The Maxim Defense PDX-SD Pistol Suppressed 300 BLK 5.5" Barrel 20rd Black MXM-48040 is a factory-suppressed 300 Blackout pistol designed for maximum performance, reliability, and low signature operation. This advanced PDX-SD model features an integrated PDX-SD 7.62 suppressor, a 5.5-inch barrel, the SCW Pistol System, an ALG trigger, and the SDX Two-Piece Handguard. Finished in a professional matte black, this pistol delivers exceptional sound reduction and controllability in one of the most compact suppressed platforms available.
Why Choose the Maxim Defense PDX-SD Suppressed Pistol in Black?
The PDX-SD represents Maxim Defense’s commitment to producing purpose-built suppressed firearms. Chambered in 300 Blackout and equipped with a factory-integrated PDX-SD 7.62 suppressor, this pistol is optimized for both supersonic and subsonic ammunition. The ultra-short 5.5-inch barrel keeps the overall length extremely compact while the integrated suppressor provides significant sound reduction. The ALG trigger upgrade delivers a crisp, consistent pull, and the SDX Two-Piece Handguard offers ample mounting space for accessories. The matte black finish provides a classic, professional appearance that is ideal for tactical, home defense, and professional applications.
Key Features of the Maxim Defense PDX-SD Pistol Black
- Factory Integrated PDX-SD 7.62 Suppressor – Purpose-built suppressor optimized specifically for 300 Blackout
- 5.5-Inch Barrel – Ultra-compact barrel length engineered for suppressed performance
- 300 Blackout Chambering – Ideal caliber for suppressed shooting with excellent subsonic performance
- SCW Pistol System – Compact pistol configuration (brace not included)
- ALG Trigger – Premium trigger upgrade for improved accuracy and smooth operation
- SDX Two-Piece Handguard – Lightweight, modular handguard with extensive M-LOK mounting options
- Matte Black Finish – Professional, non-reflective finish suitable for tactical use
- 20-Round Capacity – Compatible with standard 300 BLK magazines
Performance and Build Quality
The Maxim Defense PDX-SD Pistol is engineered from the ground up as a complete suppressed system. The integrated PDX-SD 7.62 suppressor is specifically designed to work in harmony with the 5.5-inch barrel and 300 Blackout cartridge, delivering impressive sound reduction while maintaining reliable function. The short barrel length results in an extremely compact overall package that remains highly maneuverable. The ALG trigger provides a clean break and short reset, significantly improving shot placement and follow-up speed. The SDX Two-Piece Handguard offers a strong, lightweight platform for mounting optics, lights, and other accessories. The matte black finish provides excellent corrosion resistance and a professional appearance favored by tactical users and professionals. This pistol is built to deliver factory-suppressed performance without requiring additional suppressor paperwork.
Technical Specifications
| Product Name | Maxim Defense PDX-SD Pistol Suppressed |
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| Model Number | MXM-48040 |
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| UPC | 680017480400 |
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| Caliber | 300 Blackout (300 BLK) |
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| Barrel Length | 5.5 inches |
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| Suppressor | Integrated PDX-SD 7.62 Suppressor |
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| Capacity | 20 Rounds |
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| Trigger | ALG Trigger |
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| Handguard | SDX Two-Piece Handguard |
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| Pistol System | SCW Pistol System (No Brace) |
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| Finish | Matte Black |
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| Product Type | Factory Suppressed Pistol |
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| Key Feature | Factory Suppressed 300 BLK Pistol with Integrated PDX-SD 7.62 Suppressor |
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| Best For | Suppressed Shooting, Home Defense, Tactical Use, Low Signature Operations |
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Factory-suppressed performance in a compact black package.
The Maxim Defense PDX-SD Pistol delivers integrated suppression, premium components, and exceptional 300 Blackout performance in a professional matte black finish.
Important Notice: This product is a factory-suppressed firearm and is regulated under the National Firearms Act (NFA). It is the buyer’s responsibility to ensure compliance with all applicable federal, state, and local laws, including proper NFA registration and tax stamp requirements. This product is intended for lawful use only by individuals legally allowed to possess NFA firearms. Always follow proper firearm safety rules. Keep out of reach of children. This product is intended for lawful use only.
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