VZ61 Barrel Thread adapter V2

This is a VZ61 thread adapter. It uses the factory collar for retention and adapts to a 5/8 thread. Note, should be printed in nylon and will require some force to install, this is by design. I've tested this on my own hardware, but please treat this as an open beta and take any necessary precautions. Dont get mad at me if you surefire a can down the range lol