New from DSC! Our new slimline handguard system is a direct replacement for standard CAR or M-4 handguards. The RHS features 4 1913 rails with the top rail the same height as your flattop upper while the two side rails are brought in closer for a slimmer profile providing more comfort and better handling. Made from 6061 T6 aluminum with a Mil-Spec hard coat anodized finish.