Re: Free Float tube recommendations
I am looking for the same thing for my AR build. The best deals I have seen that come from quality manufacturers are the Troy TRX Extreme (and the VTAC Extreme, which is the same thing just with different shaped vent holes), and the Midwest Industries SS.
Check them out on Google shopping for some prices.
The Troy/VTAC is cool because it is really narrow, and lots of people say it feels really good in the hand. However, they come in odd lengths... they are designed to use over a low-profile gas tube. So if you want a gas block mounted front sight like I do, then the MI SS may be a better fit. The Troy costs a little more, but apparently it comes with it's own wrench for removing the factory barrel nut and installing theirs, and with the MI SS you have to buy the wrench separately. So the price pretty much evens out.