i have actually ran a few thousand rounds through various high points and haven't had a single problem. the would be a great truck gun since they're cheap, and work well for knocking out a window in case you drive off into a lake
lol why not shoot out the window?
either way i think most of the $100+ FF rails are fine for whatever, seems like the higher end ones are just gonna weigh less and have a slightly better finish on them. as long as it serves the intended purpose you cant go wrong.