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What do you think?
I'm upgrading my internals in my MP5A5 all stock to a devil aluminum piston head, the modify polycarbonate piston and the modify s130 aeg upgrade spring. This is what I'm thinking....will it work though? Or will I order it only to find that it's all wrong. Do I or will I need anything else? Like a gear upgrade or anything? Please comment and tell me what you think if you have experience in this sort of thing please. I need input.:banghead:
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