Why do manufacturers make it difficult to replace CO2 capsule seals. I have seen it quite a bit on Umarex pistols and today I worked on a Bersa BP9CC with the same problem. They add a tiny extension to the casting to block the retaining screw being removed. You have to do a major strip to do a simple seal change. I have ground away the superfluous lip so that next time the screw can be removed via the capsule well for an easy change.

Baz

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