I love Troy, they are fantastic and a great choice. I have also used the Daniel Defense and it's an excellent choice if you want easy attach free float. I've not tried any of the lightweight rails but I'm really thinking about it, I love the Troy but dang it's heavy. I use a Hogue free float on my Grendel.
Thank you, yeah I think it's either Troy or the Samson Evo. Would be nice to actually touch one but most are sold out. So I guess it's off to Tulsa to FBT.