You basically take the stock plunger head and screw on one large metal washer and one small metal washer to hold the big washer on.
However, you need to sand down your magazines because the bolt sled does not go all the way back anymore. Regardless, this mod is really worth it. It isn't really hard to sand down the magazines, and once you do, they will fit in your longshot just fine.
Also, I just used what ever washers that fit. They do not need to be exact, but it would help.
**It was the rubber bands that made it silent, not the metal. Wtf was I thinking.
Double Edit: Don't put 2 rubber bands along with the stock o-ring on the plunger head. It creates too much friction that slows the plunger down, thus hurting range. Only use 2 O-rings.
-Mehu
Edited by Mehku, 10 February 2009 - 09:49 PM.