Sig Sauer Tread Forward Grip Kit M-LOK Black Polymer

The Sig Sauer Tread Forward Grip Kit is a modular M-LOK hand-control system built for the Sig Sauer M400 Tread and the broader AR-15 platform. Molded from durable black polymer, the kit gives shooters a fully configurable forward-grip arrangement in a single package.

At the heart of the kit is a vertical grip that improves weapon control during rapid fire and target transitions. A matching barricade stop provides a stable contact point when shooting behind cover, while a dedicated handstop locks the support hand into a repeatable position for consistent trigger manipulation and recoil management.

For additional accessory mounting, the kit includes both long and short M-LOK rail sections that interface cleanly with any M-LOK handguard. All required M-LOK connectors and mounting hardware are included, so the kit installs straight from the box with no extra parts needed.

Designed specifically for the M400 Tread but equally at home on any AR-15 with M-LOK compatibility, this forward grip kit delivers a complete, user-configurable solution in a rugged, lightweight polymer package.