SLR 6.7 inch HELIX M-LOK 5.56 Handguard Black. 56 Handguard. SLR constructed these AR Handguards & Forends from hardcoat anodized aluminum alloy for a lightweight yet durable build and all hardware is complete with a Melonite finish for enhanced strength and resistance to corrosion and wear. The free-floating SLR HELIX M-LOK 5.56 Rifle Handguard won't interfere with your barrel's accuracy and there are four integrated QD swivel mounting points for seamless sling attachment. Also the top of the handguard has Mil-Spec 1913 Picatinny rails for the attachment of Rifle Scopes red dots and other tactical accessories. Boost your firearm's potential with the help of this SLR HELIX M-LOK 5.56 AR15 Handguard. Specifications for SLR HELIX M-LOK 5.56 Handguard: Manufacturer: SLR Color: Black Finish: Melonite Fabric/Material: Aluminum Alloy Gun Make: AR Platform Gun Model: AR-15 Gun Type: Rifle Gun Rail: Picatinny Condition: New Included Accessories: Anti-rotation Insert Wedge Set Barrel Nut Mount Type: M-LOK Quantity: 1 Features of SLR HELIX M-LOK 5.56 Handguard: 1.35 inch Internal Diameter. SLR's most lightweight handguard design. Mil-Spec Hardcoat Anodize. 7075 Barrel nut w/Hardcoat Anodize. Free Floating Design. 4 QD swivel sockets. MLOK at 3 6 and 9 o'clock. Dual Wedge mounting system. Billet Anti Rotation Insert. Anti Slip Design. Package Contents: SLR HELIX M-LOK 5.56 Handguard Barrel Nut Hardware SLR HELIX6.7ML: 6.7 inch HELIX M-LOK 5.56 Handguard Black