Results 1 to 3 of 3

Thread: Need help with my BB machine gun project!

  1. #1
    Associate Engineer
    Join Date
    Apr 2013

    Need help with my BB machine gun project!


    Thank you for reading this , i really could use the help.

    I came up with this BB machine gun design:

    As you can see it has a paintball tank as a power source, the trigger is from a pump (the one you fill your tires with) , the BB's are fed to the barrel via a spring.

    I wanna know if the tank (~3000psi) will be able to sustain around 60 shots before a refill , and overall is the design okay? will it work?

    Thanks in advance!!

  2. #2
    I did something like that once with a HPA compressor. Needless to say I was asked to stop by law enforcement.

    In the way of your BB feed, I would suggest a gravity feed at a 45 degree angle back to the user instead of a spring feed. With a gravity feed, you can just keep pouring BBs in and keep firing.

    In the way of the 3000psi tank, I would suggest getting a high volume pressure regulator and tune it down to 100PSI. If you were to let the whole 3000PSI out to fire BBs, not only will you run out of gas fast, it will be more than lethal.

    On another note, play around with it, but make sure you have the proper protection gear. When doing your first few tests with high pressures and projectiles, make sure to wear thick gloves, eye protection and a good apron. Someone could loose a eye, or in the case of a ruptured line, a finger or eye.

  3. #3
    Lead Engineer RWOLFEJR's Avatar
    Join Date
    Mar 2011
    Rochester Pennsylvania
    Type "Shoot out the star" on your world wide web and see what comes up. Air powered machine bb guns are already out there. Been out there since I was a kid and maybe long before that?

Tags for this Thread

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts