This handguard is ultra-light aluminum. Designed for quick detachment and the ability to attach M-Lok and accessories. Made to be able to recess all versions of suppressor or muzzle breaksAvailable Lengths: 10", 12.5"Inside diameter 1.6 in-M-Lok Compatible mounting system-Free Float Hand Guard-Durable 6061-T6 Aircraft Aluminum-Steel Barrel Nut and Locking System-Hard Coat Anodized Finish-Recess All Version Of Muzzles and Suppressors Package includes:1 x Handguard1 x Barrel nut Compatible with standard Mil-Spec Uppers, ARCompatible paintball guns without needing an adapter: 468, PTR, T15, M5, CQMF Compatible paintball gun needing adapter:M17,Tacamo Bolt, Vortex, Tippmann A5, BT Combat,Tacamo Blizzard,Tacamo Hurricane, Tippmann X7, Tippmann Phenom