The Phase 5 Mini Hand Stop - MLOK (MHS-MLOK) is an ultra-lightweight rail attachment that will assist the operator with indexing their support hand while deploying the weapon; as well as keeping the support hand in the same position while firing. The MHS-MLOK can be mounted on the bottom or either side of any M-LOK compatible rail system in a forward or reverse direction, allowing either a push or pull style grip.Specs: Length: 2.125 in Width: 0.60 in Height: 1 inMaterial: 6061-T6 billet aluminumCompatibility: Any M-LOK Rail System. Not compatible with 1913 picatinny rails.Contents: (1) Mini Hand Stop (2) M-LOK Nuts and Screws (1) 1/8" Hex L-Wrench