Once on a time, such as the canted sights, this was an issue. The journal well would both be opened up too much or also very little, leading to Journals fitting within the rifle also tightly or much too loosely (some degree of mag wobble is usual for AKs, but https://g4569432.wikigdia.com/6656510/a_simple_key_for_glock_34_gen_5_unveiled