I want to make my MR1 my main gun now and I'm having trouble finding a bolt that fits it. The only bolts I know of that fits it is the ACP bolts and I don't think I want one.
For my barrel I was thinking a J&J 12in or a RAP4 barrel. Has anyone used the RAP4 barrel? If I got it I was thinking I would be able to get barrel kits and stuff down the road. Also the RAP4 comes in 7/8in and 1in whats the difference?
Right now all I have on it is a spring kit and velocity booster. Thanks for the help.
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