mine works AMAZING.
take the asa off the rail.
in doing so, you will have removed the front on/off knob/pin. look into the space behind where the on/off knob threading is, and you'll see a small hex nut. unscrew it and take it out.
behind the nut sits a small white plastic spacer. take it out.
behind the spacer is a small o-ring. take it out.
this o-ring could be dirty or damaged. clean it or replace it. be sure to lube it before re-installing.
the exact process in reverse will get you back into ship-shape. I never have problems with mine, and i've always liked how it works. only downside of it in my opinion is that it is limited to the stock redz rail....
Team Ice Ftw.