Guaranteed hilarious fun in any situation when you brought this with you as a gift or just for the fun of it.Just a set of M3 bolts, an elastic rubber band and you'r all set. Oh I forgot, a 10 cent euro coin or, 1 dollar cent, or equivalent. A 12x2mm neodymium magnet to hold the cap in the barrel upon lancing completes it. Available for a few cents on AliExpress or similar.

This is a strong and wel build design. It's also safe as a bottle cap is a very big object and the speed it's fired is gentle. This is all ment for fun so it's designed to not look as a real weapon as much as possible.

The print does need some support but only for the two body halfs. No further cleanup.

Have Fun and please give me likes please and of course share your make!

The barrol is compatible with most caps out there. According the international standard for caps, DIN-norm 6099. Cap size 32.10... should be the biggest.