Removed back cap and bolt, cleaned and applied new lube, that's when i noticed metal on metal contact inside the bolt.I removed the gray o ring from the back cap and compared it to the extra that's shipped with the DP parts kit. They are the same size, so that rules out my lube shrinking the o ring.
HPA only used
Lurker Lube used on all orings
G5 has approx 10 cases of paint shot through it.
You can clearly see the wear in the photo next to the gray o ring Bolt wear 1.JPG 93.75KB 0 downloads