I have a RRA 16" Varmint model with the .936 diameter barrel and I would like to put a rifle length free float tube on it, preferably some type of one piece quad rail. Problem is the tube needs to fit over the EGW low profile gas block and I know from the carbine free float tube that came with the gun it will not clear. The gas block may clear if some material was milled off the bottom side of gas block. I didn't want to do this, so if any one can come up with a solution please help. Also does the AR-10 free float tubes work on the AR-16 uppers o.k. and if so which ones?
Thanks
Huntall
Thanks
Huntall