Super light like the lightest carbon, but more conductive like aluminum - OpticsPlanet Exclusive Firefield Fringe 10in Carbon M-LOK Rail

So, why do you choose a carbon hand guard? If it is for being light, well this one is nearly as light as you get. Is it for strength, this is probably just as strong but I've not tested. You want one that is cheap - you can't find lighter and cheaper than this! You want one that looks more black than grey carbon, and looks good on your gun, this is it! So why not 5 stars?

There are 2 negatives about this brand:

1) If you chose a carbon handguard to not feel so hot to your touch like a metal hand guard, this is not it. The true carbon hand guards made by Lancer, Faxon, BattleArms, etc. do not conduct heat as much to your hands. This one I fond to be no better than metal. These hand gaurds cost 4-5x more too!

2) The rail on top is mostly straight, but I found that they are not pure straight. If you are mounting something like a scope to part of the rail, it is probably not ideal. It bowes in the center. If you just want to mount a front sight, then no issue!