Nocturnalnature

Thanks for the reply! Luckily I have the 5.5 mm ignition wrench, but the nut seems to be rarer than hens teeth at the moment.

Just got my 3rd Benelli M4 and noticed the front sight is a little crooked (not canted). I know folks say to use a new nut when removing or installing a sight, however what about slightly loosening it to make small adjustments? Seems they're out of stock everywhere and I'd like to get it straightened before I try sighting in, but I don't want my sight flying off never to be seen again. Many thanks in advance!