Mossberg 500 won't lock up?

[Caster]

Does your Mossberg 500 not wanna lock up when you close the slide? Mine gave me fits all morning.

I'm in the process of a nasty redneck rattle can camo job. Guess what? The slide release in the trigger group is very very close to receiver. Touching even. The thickness of a little paint will cause the slide release to stick in the 'up' position and if that happens the slide will not lock properly. Basically, best I can figure, the locking lug lucks the bolt into the barrel. The slide release touches little bolt carrier plate thingy and will not allow the bolt to come back, disengaging the locking lug from the barrel. When the trigger is pulled OR the release button is pushed, the little arm in the trigger group moves outta tha way and lets the carrier move backwards. The carrier pulls the locking lug down, unlocking it and you can slide it out of battery.
Rinse and repeat.

But you guys are smarter than me and already knew this. Just thought I'd pass it along to any future Mossberg tinkerers who might be as dumb as I am.

Ohh, the solution? Dremel tool, sanding drum, remove the build up (Krylon) and a few thousandths of aluminum from the inside of the receiver just for good measure. Edited June 17, 2015 by Caster

[Ted S.]

I'd just break the shotgun apart completely and paint the receiver, furniture, barrel, mag tube, etc...pretty much the what you want painted (assembled minus the guts. I had broken everything down on mine when I used chalkboard paint, and painted all the parts I wanted painted individually since it was a solid color. Turned out great, even if the green is a bit loud.

[Caster]

That's what I did. That how the paint buildup got in there. SHOULD have tape that area off. Ohh well, know next time. Edited June 18, 2015 by Caster