EDIT ninja: to those 40+ who downloaded early, I forgot i needed to edit the 2 main shells of the body. please see the updated ones ive replaced.. sorry!
powered by hair elastics, built in hopper magazine for 6+1 HIR rounds. 2 bands got me 24fps @ 24 ft range ..I printed this with 13% infill, no supports, orientation is in picture.
other than the elastics, you will need 1 inch machine screws X4 and X2 shorter screws to secure the grips... i just reused some nerf screws i had around...
*you may also glue an elastic to the priming handle for an auto return feature.