I installed this on my .450 Bushmaster upper receiver, and couldn't be happier with it. Solid mechanical lock, and uses a factory barrel nut. Doesn't require any glue like many other newer free float rail systems. If I want glue on my rifle, I'll build it out of cardboard. Locks on tight, and super easy to install. Great feel in the hands. It's built very solid, feels like it could withstand getting ran over by a tank, and has a great finish to top it off. It's also lighter than the cheap 7" drop in rail I put on my Colt M4 with 6" more rail space! The only downside to this is the price, but t...
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