I have a 24" DPMS stainless bull barrel. Do you know for SURE if the free float tube you have will fit over the barrel? I have had zero luck with any other brands of free float tubes I have picked up on the EE so far.
The DPMS barrel has a slightly thicker diameter from the gas block to the end of the barrel where the tube threads on. All of the other 2 piece FFT's barrel nuts I have bought will not go past the gas port area, where the barrel diameter steps up ever so slightly.
Here is a link that shows the barrel I have: www.dpmsinc.com/10Expand.asp?ProductCode=BULL-03-24
If this is the same FFT DPMS uses for this set up
....please consider it sold.