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Sig Sauer
If you're running a Sig Sauer M400 Tread and want to upgrade your handguard or replace a worn one, the Sig Sauer M400 Tread 10" M-LOK Free-Float Handguard is a factory-direct option built to spec for your rifle. This 10-inch free-float design isolates the barrel from contact with the rail system, helping maintain consistent accuracy by removing harmonic interference during firing. The M-LOK slot pattern gives you genuine modularity—attach lights, grips, bipods, and other tactical accessories exactly where you need them.
Free-float handguards have become standard on serious AR platforms for good reason. By decoupling barrel vibration from the rail, you get more predictable point-of-impact performance, whether you're punching paper at the range, hunting medium game, or running competitions. The 10-inch length strikes a practical balance—short enough for close-quarters handling and maneuverability, long enough to give your support hand real estate and mounting options for common optic heights and accessory placements.
Since this is a Sig Sauer factory part, fitment on your M400 Tread is guaranteed. Installation uses your existing hardware, so there's no need to source additional mounting components. The black finish matches the platform's aesthetic and blends with standard Picatinny rails and accessories.
| Length | 10 inches |
| Mounting System | M-LOK |
| Design | Free-float |
| Finish | Black |
| Compatibility | Sig Sauer M400 Tread |
| Hardware Included | No—uses existing M400 Tread mounting hardware |
Yes. This is a factory Sig Sauer replacement handguard designed specifically for the M400 Tread platform and will mount using your existing hardware.
A free-float handguard doesn't touch the barrel, preventing vibration from the rail from affecting the barrel's movement during firing. This isolation typically results in more consistent and repeatable accuracy, especially important for precision shooting, hunting, and competition use.
No. This handguard uses the mounting hardware already on your M400 Tread, so you can install it without purchasing additional parts.
Yes. The M-LOK slot pattern allows you to mount any M-LOK-compatible accessories—flashlights, vertical grips, bipods, and tactical rails—directly to the handguard without proprietary adapters.
Sig Sauer
If you're running a Sig Sauer M400 Tread and want to upgrade your handguard or replace a worn one, the Sig Sauer M400 Tread 10" M-LOK Free-Float Handguard is a factory-direct option built to spec for your rifle. This 10-inch free-float design isolates the barrel from contact with the rail system, helping maintain consistent accuracy by removing harmonic interference during firing. The M-LOK slot pattern gives you genuine modularity—attach lights, grips, bipods, and other tactical accessories exactly where you need them.
Free-float handguards have become standard on serious AR platforms for good reason. By decoupling barrel vibration from the rail, you get more predictable point-of-impact performance, whether you're punching paper at the range, hunting medium game, or running competitions. The 10-inch length strikes a practical balance—short enough for close-quarters handling and maneuverability, long enough to give your support hand real estate and mounting options for common optic heights and accessory placements.
Since this is a Sig Sauer factory part, fitment on your M400 Tread is guaranteed. Installation uses your existing hardware, so there's no need to source additional mounting components. The black finish matches the platform's aesthetic and blends with standard Picatinny rails and accessories.
| Length | 10 inches |
| Mounting System | M-LOK |
| Design | Free-float |
| Finish | Black |
| Compatibility | Sig Sauer M400 Tread |
| Hardware Included | No—uses existing M400 Tread mounting hardware |
Yes. This is a factory Sig Sauer replacement handguard designed specifically for the M400 Tread platform and will mount using your existing hardware.
A free-float handguard doesn't touch the barrel, preventing vibration from the rail from affecting the barrel's movement during firing. This isolation typically results in more consistent and repeatable accuracy, especially important for precision shooting, hunting, and competition use.
No. This handguard uses the mounting hardware already on your M400 Tread, so you can install it without purchasing additional parts.
Yes. The M-LOK slot pattern allows you to mount any M-LOK-compatible accessories—flashlights, vertical grips, bipods, and tactical rails—directly to the handguard without proprietary adapters.
