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elrasho

KWA MP9 body pin comes out

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When firing my MP9 over a period of time, one of the body pins begins to pop out. One time it came right out!

 

Any ideas why this is happening? I'm using Predator abbey 144a gas and it shoots at around 320 FPS. The body pin in question is the one furtherest back and it goes through the trigger arm in the gun.

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sounds like it is worn. You may be able to replace it. It might be that the receiver is worn though which will be harder to sort. Does the pin have any form of retention; a groove or anything?

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Looking at the blow up diagram I'm missing part 111 which is a c clip. Any ideas what size this is so I can get another one?

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