Ultra-Mini 9mm Laser Cartridge

I’m building a laser “bullet” for atış antrenmanı and I need every element—from enclosure to electronics—worked out so it can be manufactured for no more than a real 9 × 19 mm cartridge’s footprint. Core... (Budget: $30 - $250 USD, Jobs: 3D Modelling, 3D Printing, CAD/CAM, Electronics, PCB Design and Layout, PCB Layout, Product Design, Prototyping)