VISM KeyMod Picatinny Rail 6 KM Slots Black. These Picatinny Rails from VISM are made of black anodized aluminum. Choose from short or medium length VISM KeyMod Picatinny Rail Attachments. Customize your rifle with VISM KeyMod Picatinny Rail Units VMKM6 to add the Rifle Scope or red dot sight of your choice. Specifications for VISM KeyMod Picatinny Rail: Manufacturer: VISM Color: Black Features of VISM KeyMod Picatinny Rail Attachment VMKM6: Short rail covers 3 KeyMod slots (5 Picatinny rail slots). Mounts with two KeyMod screws. Length 2.25in. Weight 0.7oz. Medium rail covers 6 KeyMod slots (11 Picatinny slots). Mounts with three KeyMod screws. Length 4.6in. Weight 1.5oz. Rounded profile rail ends for a more comfortable hold when used as a hand stop. Black Anodized Aluminum Construction Package Contents: VISM KeyMod Picatinny Rail VMKM6 Accessory VISM VMKM6: KeyMod Picatinny Rail 6 KM Slots Black