The Sig Sauer Tread Forward Grip Kit, 13-inch M-LOK (Sig Sauer part no. KIT-TRD-GRIP-FORWARD-BLK) is a vertical grip system built by Sig Sauer as the factory replacement kit for the M400 Tread rifle series. It is compatible with any M-LOK mounting interface, so it isn’t limited to Sig rifles, and includes everything needed to set up a forward grip configuration in one box. The kit bundles a vertical grip, barricade stop, handstop, finger stop, and short and long M-LOK panels, letting shooters configure their handguard exactly how they want it for barricade support, close-quarters control, or a traditional vertical hold. It’s a straightforward way to add real forward-hand options to any M-LOK-equipped rifle.

Key Specifications

• Sized for a 13-inch M-LOK handguard, matching the M400 Tread’s factory forend.
• Compatible with any M-LOK mounting interface, not limited to Sig Sauer rifles.
• Includes a vertical grip for a traditional forward-hand hold.
• Includes a barricade stop for stable support when shooting off cover.
• Includes a handstop and finger stop for close-range hand positioning and control.
• Comes with short and long M-LOK panels to finish out the handguard’s open slots.
• Weighs approximately 0.4 lbs for the complete kit.
• Built as the factory kit for Sig Sauer’s M400 Tread rifle series.
• Offers a modular M-LOK panel layout so you can configure grip and rail coverage to taste.

Frequently Asked Questions

Does this kit fit rifles other than the Sig M400 Tread? Yes, it works with any M-LOK-compatible handguard, though it is sized to match the M400 Tread’s 13-inch forend.

What’s included in the kit? A vertical grip, barricade stop, handstop, finger stop, and short/long M-LOK panels.

Buy the Sig Sauer Tread Forward Grip Kit

Configure your M-LOK handguard exactly how you fight. Order this Sig Sauer grip kit from our rifle parts selection for fast, insured shipping from our Lubbock, Texas gun shop.