VISM M-LOK Triangle Handguard for AR-15 Black Carbine Length. Remove factory handguard drop in the M-LOK handguards and use supplied four screws to secure M-LOK handguard in place. US Patent Pending Specifications for VISM M-LOK Triangle Handguard for AR-15: Manufacturer: VISM Color: Black Fabric/Material: Anodized Aluminum Gun Make: AR Platform Gun Model: AR-15 Gun Type: Rifle Gun Rail: Picatinny Weight: 11.3 oz Condition: New Included Accessories: Standard Mount Type: KeyMod Quantity: 1 Package Contents: VISM M-LOK Triangle Handguard for AR-15 VISM VMARTMLC: M-LOK Triangle Handguard for AR-15 Black Carbine Length