ULE trigger vs. standard X-valve on/off

[surfbum]

hey guys

i was wondering how i could tell the difference visually between an installed ULE trigger and a standard x-valve on/off

any help is appreciated
thanks

[Dayspring]

Take the on/off out and unscrew it. If it's thin all the way through, it's normal. If it's REALLY thin, and has a small black oring in the middle, it's a ULT.