If you affix a section of Picatinny rail into an M-LOK slot, and then put optics to that rail, will it work just fine, or is it going to lose zero as the recoil of the gun shakes the whole thing apart? I'm asking because it's quite baffling to see all these octagonal handguards that have rails on top and bottom, because I'm not sure if they are made that way for conveniences sake, or because it wouldn't work otherwise.