My magpul front MBUS came with a little plastic sight adjustment tool. Had never used one before that, just a flat screwdriver and some forceps or sometimes my fingernails. I used it one time to zero the gun after I installed the sight, then I stuck it in the stock compartment on my ACS-L so I'd have something to go in there since over the years I have seemingly lost the matches, wire saw, and tiny fish hooks that came with my county fair prize Survival knife from 1986.