Crossman 500 Powermatic issues

[cr17]

Hi : new here and hoping I can get some info. I just received a used Crossman semi auto Powermatic Model 500 BB gun. Great shape but the gas system wont hold pressure. I got the recommended seal kit but looking at the very poor parts diagram I'm not convinced all the parts required are there. Can anyone help with a better diagram or advice/instructions on how to install the gas system internal parts?


Thanks in advance

Take care

 

[Septicdeath]

This will walk you through the process. I believe there are three or for parts he wrote.

Crosman Powermatic 500 Disassembly, Part 1

Having hit a velocity wall with the V-350 I decided that a slight change of pace was in order. So I dug a Crosman Powermatic 500 out of my p...

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