Ok, so I have been working on this rifle design for a couple of years now. I have a semi-functional 3d printed prototype and will be applying for provisional patents in the near future. Does anybody here know if there is any kind of “provisional” manufacturing license through the ATF so that I can make prototypes for further R&D? I need to make a few and test them out before deciding if it is worth persueing manufacturing and seling them. I dont have a mill or lathe yet or a place to put them, just trying to fugure out the legal side of things. I am well versed in MG, barrel length, pistol, AOW type legal stuff. It will be a bolt action rifle. Thanks for any help!