[jcassity]

they are also easy to take apart.
i found a carbon bridge on one of mine, i replaced it with new but.....
if you simply sand paper both sides of the insulator then flip it over.. the carbon bridge isnt in the game anymore plus you have sanded the thickness of the insulator down past the bridge.

i saved my old loctal for a spare part someday.

to get rid of the green stuff, start with baking soda water mix

also, if you have guns, the cleaning kit come with some really small brushes that you could spin around on top to scrap away at the green.

baking soda will break down green oxidation.

the real issues i "think" is installing a proper rivit. i used standard typical diy rivits and found they work but up top, you have to file down the profile of the rivit to allow for the tube to properly slip down far enough to clip into the lock.