07-27-2011, 04:09 AM
z06man Wrote:So it uses standard barrels and standard uppers. The only real difference is the rail and the barrel nut? Also is the rail indexed in some way to make sure it alligns with the upper with each install?
It fits over the front of the upper and overlaps the upper a little to align it. You adjust two allen screws at the top and bottom of the back of the railto slide over the front portion of the carrying handle on an A1 style upper or the upper rail on a flat top, but you only need to adjust them once. One of the other allen screws has to be tightened to get the rail off instead of loosened. From what I could see, when you put it on and loosen that allen screw, it opens up inside the front of the barrel nut to get it to center. Another allen screw is tightened to clamp onto the back of the long barrel nut.
I was leery of two allen screws being able to hold it solid, but you can stand on it and it doesn't move. I guess the elongated barrel nut is a key part of the design.
It fits on mil spec uppers, I don't know how much it will open up for other uppers, or if it will even fit.
There are no teeth to line up with the gas tube hole like a standard barrel nut, so the gas tube stays on the barrel. You just stick it through the hole and tighten the Templar barrel nut. I guess the armorer's wrench is not a standard one since that is much smaller in diameter. The wrench comes with the kit, though.
You obviously can't use it with a large gas block.
As for weight, the 12 inch rail weighs 15.5 ounces and the 14 in rail is 18 ounces. I don't know how that compares to others.