Officially licensed by Daniel Defense, Madbull Airsoft gives you the Omega Rail system best suited for M4 Carbines as CQB length handguards. These rail systems require no modification to the base weapon (M4), they simply drop on. Omega rails are available in 7, 9 and 12 inch length versions making the different models appropriate for use with full length M4A1 carbine length weapons as well as even shorter CQB variants (i.e. 10.5 inch barrels).
This set is a free-float type handguard keeping up in pace with real steel contemporary designs. Equally so, the frontend also has QD slots for use with DQ sling mounts (not included). With their aggressive lines and Aluminium build they are robust and bold looking in design but the material use makes it lightweight.
An in-depth user note; some rail attach accessories (especially grenade launchers) tend to require a longer set rail as their rail attach point are set inside a deeper grove then most accessories. The Daniel Defense kit is one of the designs with rather deep set rails on the bottom and top allowing it to easily accommodate the deeper set groves of such devices as grenade launchers.
That all said, G&P M4s have been known to have some fiddly issues with installing barrels when using Madbull DD rails and although it will still fit as is, using a Madbull DD rail barrel nut (MB-BNUT-DDRGP) does make life a little bit easier.