Clever Top/Bottom 3-piece Covers with Integral Spinal Cords/Alignment Housing for Perfect Fit with Barrel Nut and Round Front Cap .
Includes 19 Top Slots, 23 Bottom Slots, 25 Left/Right Continuous Slots .
Designed with Special Cuts to Fit with the Front Sight, Sling Swivel and Bayonet Lug .
Fits 270mm Barrel M4/M16 airsoft Rifle.
Easy Installation with No Modification to the Barrel.
Weight(Gram):525(with Box)