The M400-TREAD PISTOL Direct is a complete, ready-to-fire pistol built on the proven M400 platform. It’s designed for shooters who want a reliable, high-performance AR-style pistol without the assembly process. Since we started stocking it in spring 2025, it has become one of our steady sellers in this category, noted for its improved fit and finish.
Key Features
- Complete & Ready to Fire: Ships as a fully assembled pistol. No gunsmithing or additional parts required.
- Enhanced Tolerances: Our staff notes that, compared to the previous version, the machining tolerances are noticeably tighter for improved reliability.
- TREAD Handguard: Features the modular TREAD M-LOK handguard for secure accessory mounting and a comfortable grip.
- Direct Impingement System: Utilizes a proven, simple gas system for consistent cycling and performance.
- SB Tactical Brace: Comes equipped with a stabilizing brace for enhanced control and shootability.
Specifications
| Model | M400-TREAD PISTOL Direct |
| Caliber | 5.56 NATO / .223 Remington |
| Barrel Length | 10.5 inches |
| Overall Length | 26.5 inches (with brace extended) |
| Handguard | TREAD M-LOK, 9 inches |
| Brace | SB Tactical SBA3 |
| Weight (measured) | 7.5 oz |
| Trigger | Single Stage, 6.5 lbs pull (approx.) |
Frequently Asked Questions
Is this a complete firearm?
Yes. The M400-TREAD PISTOL Direct ships as a complete, functional pistol. It requires no assembly and is ready to fire with appropriate ammunition after a standard field strip, clean, and lubrication.
What is included in the box?
The pistol ships with one 30-round Magpul PMAG, the SB Tactical SBA3 stabilizing brace installed, and the owner’s manual. A rear sight is installed; a front sight or optic is required for aimed fire.
Can I attach a vertical foregrip to this pistol?
No. Attaching a vertical foregrip to an AR-style pistol with a barrel under 16″ generally creates an Any Other Weapon (AOW) under the National Firearms Act (NFA), requiring registration. Consult current ATF regulations before modifying your firearm.
✅ Same-day shipping from Atlanta, GA
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✅ 30-day returns
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