VISM M-Lok & Keymod Picatinny Accessory Rail Medium Black. Specifications for VISM M-Lok & Keymod Picatinny Accessory Rail: Manufacturer: VISM Color: Black Finish: Anodized Fabric/Material: Aluminum Gun Rail: Picatinny Height: 0.48 in Condition: New Features of VISM M-Lok & Keymod Picatinny Accessory Rail Bottom of the accessory rail has custom machined lugs to lock the accessory rail from moving forward or aft on the M-LOK & KEYMOD slots. Tapered profile PICATINNY rail ends for a more comfortable hold when used as a hand stop. Perfect for mounting accessories with Weaver/ Picatinny mounts like vertical grips flashlights and lasers to your M-LOK & KEYMOD handguards. Package Contents: VISM M-Lok & Keymod Picatinny Accessory Rail VISM VMMK5B: M-Lok & Keymod Picatinny Accessory Rail Medium Black