Wouldn't be surprised if this was already recommended, but here's my takes on the glint cover. Sort of a choose your own gameplay design with how I set it up.
1: Have it only be applicable on medium scopes
2: Have it only be applicable on long scopes
3: Have it only be applicable on long scopes but only the reduces magnification scopes
4: Have it only be applicable on all scopes
A: Have it as a top sight attachment
B: Have it as a canted sight attachment
C: Have it as an equipment
D: Have it as a default for these specific scope types
What do you think? Should more be added to the list?