want a fatter aaa o ring [pic]

[zenlunatic]

I bought a used Arc AAA and the previous owner has said the unit had all stock parts/build. My new GS I bought straight from Arc has a noticeably smaller oring. Anyone have a thicker oring (Ill send a SASE) or know where I can get one? My plan is to swap out the o ring and file down the solder blob slightly, lubricate, and hopefully have a smoother GS unit with no oring exposed even when turned off. Thanks.

 

[Warhead]

x2 for the sizes...and which larger size works well.