Just got my pgp. I am in the process of polishing it up now. I switched the bearing spring with a cut down pen spring so its much easier to cock now and the bolt will actually fall forward and stay there if i point the gun down but will not fall open if i point the gun up. I am thinking prolly gonna add a RVA(who makes the best?) and maybe a ca and running it off a small tank but then i might want to run a hopper. What else should i do that are performence/asthetic mods.