I would really give the Samson (or Rainier Arms) Evolution a look. It's very similar to the Troy but the friction mounting method seems to be executed a little better. No cheese grater feel either.
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I would really give the Samson (or Rainier Arms) Evolution a look. It's very similar to the Troy but the friction mounting method seems to be executed a little better. No cheese grater feel either.
I like the alpha rails. As others have mentioned they use a standard USGI barrel nut.
Note on installation:
it is very important that the USGI nut be properly aligned (teeth need to be oriented so that a gas tube would fit). I've had two problems with installation. On the first, the barrel nut was placed on too tightly and then one of the teeth was ground down to allow passage of the gas tube. The alpha rail would attach, but subsequently loosen. Once the teeth on the barrel nut were properly aligned, there was no problem. The other problem was with a dedicated .22LR upper. A gas tube was obviously not needed and the teeth were not properly aligned (as to allow a gas tube to pass through the teeth). Once the barrel nut was adjusted, the rail fit fine.
Jake
P.s. in the interest of full disclosure, I'm selling some alpha rails.
Last edited by Jmacken37; 03-12-13 at 21:48.
I'm using the 9" VTAC on my 10.5 upper and like it.
The installation of the alpha series of tube is easy as hell. The tube comes with directions and as long as you understand english and can figure out the pics it's dead simple.
BUT, as was mentioned earlier, barrel nut orientation is critical! If it's not perfectly indexed you're going to have problems.
As far as the FSB is concerned.. if you only have a hacksaw and a file it might take you as long as 30 minutes to cut it down to low pro size and smooth it.
It will take longer for the paint you use to refinish the gas block to dry than it will take you to modify the gas block.
The Troy/Vtac tubes are getting to be pretty popular around here with LEO's so I've been busily modding FSB's.
My gas block is the type that has the picatinny rail on top and the bottom is just as wide.
Attachment 15857here it is
Just swap out that bulky gas block for a low profile one. Easy enough to do if you have basic tools and it won't cost much either.
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