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 for M4 Car. Length Model 4/15
Easy Installation with No Modification to the Barrel
A complete and most affordable tactical solution offering endless options of scope, flashlight, laser, bipod, foregrip or grenade launcher
NOTES: Rifle& Accessories shown on picture for illustration only, NOT include in package.
Color - Matte black
Weight - 522g (With box)
Rail length - 270mm
Rail type - 20mm