These new seals are hard and very durable. I changed one out today. Pretty easy after you get the first one out of the way. You guys should not have any trouble with the change. Here is what I did.

The old blue seal crumbles up after you make the first puncture. Now that I know what to expect I would have just cut the seal off flush with the piston face and then dug the rest out of the piston. I used a strong pick and a small screwdriver bit in a drill to destruct the seal.





There is a ring inside the piston that the new seal will have to fit in it. After you get the face of the piston face cleaned out, you will be ready to install the new seal. I tried a couple of different ways to get the new seal in to the piston face. The new seals are pretty tough and it would be hard to hurt one short of running a sharp screwdriver blade in to one. I tried to force it in by pushing against a flat surface and using a small grace point screwdriver to push the lip in. Not happy with the results and quit before I slipped and ran the blade into my hand.

So I chucked the arm the piston is on in a vice, not for tightness buy to hold it in place so I could push down on it with force. I canted the seal up on one side and pushed the lip in to the face on the other side of the seal.



I pushed down on it with my hand and then moved my hand in a clockwise motion like I was screwing it on with my hand. It takes some force and effort but it will go. At one point I was close and tried to push the last bit in with a small grace point screwdriver. It was to thick to get the seal past the blade. I did the counter clock wise screw one more time , it got very close and I tapped down on the seal with a hammer and in it went.




The seal slid into the gun with a little resistance and was very hard to close at the end of the cocking stork the first few times. I guess the seal was seating, I did put moly on the sides. I did not crony the gun yet( I still need a breech seal, using a O ring for now)it is shooting a lot harder and close to spec. tim

I would rather die, than give you control.
In memory of the hero's on flight 93.
"Let's Roll".

Before commencing the "remove old seal" session, place the entire piston in the freezer for 30 mintues. The old seal crumbles like a Saltine Cracker in the hands of a salt-crazed 5 year old once retrieved from the freezer.