This Modular M-LOK® Hand Stop Kit includes an M-Lok hand stop, index panel, modular base, and all mounting hardware. The modular M-LOK hand stop assembly is a lightweight, low-profile design made from 6061-T6 aluminum. Featuring aggressive texturing It serves as an index point on your M-LOK® handguard for improved weapon control or as a forward stop to prevent the shooter’s hand from reaching the hot muzzle.