Product Overview
The SIG SAUER M400 TREAD V2 is engineered as a robust and reliable AR-15 platform, chambered in 5.56x45mm NATO. This rifle integrates advanced features designed to optimize performance for tactical applications, competitive shooting, and recreational use. The TREAD V2 variant introduces enhancements focused on modularity and user interface, providing a highly adaptable firearm.
Key Features
Precision Machined Construction
The M400 TREAD V2 utilizes a forged 7075-T6 aluminum receiver set, ensuring structural integrity and consistent component interface. The 16-inch barrel is precision-machined for consistent projectile velocity and accuracy. A low-profile gas block and a direct impingement operating system maintain reliability under varied conditions.
Free-Float M-LOK Handguard
An extended free-float M-LOK handguard provides a rigid platform for accessory attachment while mitigating barrel harmonics for improved accuracy. This design allows for precise optic and accessory placement without affecting barrel dynamics.
Enhanced Ergonomics and Control
The rifle incorporates an adjustable six-position collapsible stock, facilitating length of pull customization for various shooter profiles and gear configurations. An enhanced pistol grip ensures positive weapon control and reduces fatigue during extended use. The integrated ambidextrous safety selector enhances operational efficiency for both right and left-handed operators.
Optimized Trigger System
Equipped with a crisp, single-stage trigger, the M400 TREAD V2 provides a clean break, aiding in precision shot placement. This trigger system is designed to offer a consistent pull weight and minimal overtravel.
Durable Finish
This variant features a durable green finish, offering enhanced corrosion resistance and a low-observability profile suitable for diverse operational environments.
Technical Specifications
- Caliber: 5.56x45mm NATO
- Barrel Length: 16 inches
- Action: Semi-automatic, Direct Impingement
- Stock: 6-Position Collapsible
- Handguard: Free-Float M-LOK
- Receiver Material: Forged 7075-T6 Aluminum
- Trigger: Single-Stage
- Muzzle Device: A2 Flash Hider
- Finish: Green









