G&P Makes something similar to the CASV rail called the "RAS II long version handguard kit". See if you can find something like that anywhere if you want that look. Otherwise a lot of people are going with the Madbull/Daniel Defense Lite rails (freefloat) or the Omega rails (delta ring mounted). Either that or if you want to be a bit different get a MRE rail which I think looks sexy if you want a SOPMOD-ish M4.
ಠ_ಠLess QQ more Pew Pew
READY TO >> RACE