ill say this about acogs.
ive dropped mine twice now once from shoulder height practicing in the dim lighted basement tripped over the cat and it landed acog down on the concrete bounced and hit again. the next weekend at the range i knocked it off the bench it hit the concrete floor with the acog taking the impact.
still held zero no breakage.
i dont recomend doing it on purpose. but im thoroughly convinced that anything that will destroy the acog and render it inoperable is probably going to destroy the rifle and you with it. i think it would have to be on the order of an obama drone strike.
mine is on a adm qd mount with matach rear buis. front is fixed a2 base.
not a totally up to date pic as ive since replaced the magpul rear with a matech and the larue pos mount with a adm
its a bravo company bfh upper with bravo company lower and magpul furniture bravo company gunfighter grip replacing the a2 and gunfighter charging handle.
i need to get an uptodate pic soon.