This Mini Hand Stop is our innovative KeyMod and M-LOK hand stop; you can easily attach our lightweight hand stop to either rail system. Being reversible, it allows for either a "push" or "pull" style grip. Focusing as much attention on the contoured front surface as well as the jimped rear, the handstop allows for numerous shooting positions and styles in a compact, ultralight, durable package. Keymod & M-LOK Hand Stop Feature: Only uses 1 M-LOK slot or 2 KeyMod Holes, includes both M-LOK & KeyMod Hardware. Can be mounted on the bottom or either side in a forward or reverse direction. AR 15 hand stops boast easy, out-of-the-tin installation. Type: Keymod & M-LOK Hand Stop Material: 6061 Billet Aluminum Color : Black,Tan Size: 39*28*16mm Net Weight: 15g