The Barrett M82A1 rifle comes with a rear removable BUIS and the front BUIS is integrated/recessed into the front rail.

When those are standing up, they seem to be twice as tall as traditional AR15 style BUIS.

With my new Bushmaster BA50 rifle, I'd like to have some BUIS as well in case of scope damage, etc...

I must have a good 24-30" between the rear and front rail to put the sights on gauging from the 30" barrel here...



The rail already seems elevated some what... I'm thinking AR15 BUIS probably would work... what do you think? BUIS for 100-300 yards is all I'm looking at here.