I have a Top Tech G&G TR4 CQB-S with the pneumatic blow back I am not quite sure what else I need to order to have a functioning charging handle and fake bolt I don't care about the blow back but it being empty behind my dust cover and no charging handle is not doable for my OCD when it comes to my gun lol will I be able to use my g&g charging handle or that needs to be replaced too? I plan on ordering the m120 with 70oo sorbo, Prometheus 363mm, lonex hop unit, r hop, r hop install kit and whatever else I need for my bolt
thanks
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