The Fusion Tactical Handguard Keymod / M-LOK is a free-float hand-guard, made from 6061 aircraft aluminum. The unique design of this handguard made it super light, the 7" weighs half a pound. The barrel nut has a hexagon, you don't need an AR wrench to install it. You can use your adjustable wrench or a pliers to lock down the barrel nut. Quick and easy to install.Rail Length: 4"/7"/10"/12"/15"Interior Diameter: 1.33" /34mmCompatibility: Compatible with standard AR Mil-Spec UppersCompatible paintball gun without needing an adapter: 468, PTR, T15, M5 CQMF, T16, MCS100Compatible paintball gun needing adapter:M17: https://mcsus.com/products/milsig-milspec-barrel-nut-adapterTacamo Bolt, Vortex, Tippmann A5, BT Combat: https://mcsus.com/products/barrel-nut-a-5-threaded-milspec-handguard-threads Tacamo Blizzard: https://mcsus.com/products/tacamo-milspec-barrel-nut-adapter-blizzard-boltTacamo Hurricane, Tippmann X7, Tippmann Phenom: https://mcsus.com/products/hurricane-phenom-milspec-barrel-nut-adapterPackage includes:1 x Handguard1 x Barrel nut
