Thread necro!
I didn't want to start a new thread for this.
I recently replaced the o-rings on my KA 40mms
I used some dollar store fabric covered hair rubber bands
Here's the pesky little bastard that keeps breaking!
I bought some dollar store hair rubberbands (be sure not the buy those with the metal gromet)
just stretch it into place where the o-ring was.
for the part that didn't fit,
I simply heated it up very lightly with my little blowtorch (you can also use a lighter)
And push it into place using your nail (something hard that will fit) while it's still warm and soft
And voilÃ*!
We'll see how long these will outlast the normal stock o-ring in the coming season.
I'll try to keep you guys posted.