Some (mostly older) designs have an issue where the strap can't be easily attached where you want it (for us lefties it's more common of an issue), this attachment point will let you turn every picatinny rail to a strap location easily, this weapon tag attachment point will also let you attach weapon tags like the game
blacklight retribution weapon tag.
requires an M3x30mm pan head screw & a matching M3 nut (not included), takes up 1 slot on standard picatinny rail.
While untested on real firearms being purely cosmatic it should work just as well as on airsoft rifles.