New Guy, what's up! ...and M6TR QUESTION

Been lurking a little while. Long time gun guy. Had NODS for a few years now. Just acquired this laserspeed M6TR and my first question is...

WhatTheHell? Can't even switch to ir laser/illum without removing said blue thing!

That is all.

Been lurking a little while. Long time gun guy. Had NODS for a few years now. Just acquired this laserspeed M6TR and my first question is...

WhatTheHell? Can't even switch to ir laser/illum without removing said blue thing!

That is all.