For obvious reasons don’t do anything illegal.. Would it even be possible?

Gun!

Break action cap gun with a custom caliber I call .033L aka 0.033 Link which is about 6.6mm diameter

Required Parts

• 4x m2.5x4-7mm screws
• 8x m3x10 screws
• some pins/nails as axis pins (~1.6mm dia.)
• 2x 9.12x34.9mm springs
• 1x 5.55x17.46mm spring
• 3D Print: Thingiverse

Video with all you need to know

What next…?

Working on a semi-auto verson, A long way to go…