M203 Replicable fireable under-barrel soft dart grenade launcher

Hello everyone I have uploaded version 2.0 this is version 1.0 if interested you can check my latest link and I've updated a new hollow handguard they are interchangeable 2.0 is optimized it's highly recommended for everyone to download and print

This is the modified and adjusted version it's a toy soft dart gun that replicates the classic under-barrel M203 grenade launcher It uses 40mm toy soft dart grenades The loading method is the same as the original The bullet structure was adjusted based on this creator's model (Rubberband Powered Cartridge Launcher from QuickFrostbite MakerWorld: Free 3D Models) If interested you can check it out Currently this is the first version of the model there are still many areas that need optimization but it doesn't affect playability those with DIY skills can give it a try if you have any questions you can ask me I'm also just experimenting myself there are many shortcomings please be understanding I will continue to optimize it when I have time Thank you everyone

Hardware list

M2.5x3 2 pieces (regular flat head screws)

M3x5 1 piece (socket head screw)

M3x6 1 piece (socket head screw)

M3x8 1 piece (socket head screw)

M3x12 1 piece (socket head screw)

M3x14 1 piece (socket head screw)

M3x20 1 piece (socket head screw)

M3x25 1 piece (socket head screw)

M3x30 2 pieces (socket head screws)

Also 6 matching M3 heat-set nuts + 3 regular M3 nuts

10mm 1.8mm diameter metal rod (can also be replaced with a toothpick)

Rubber bands

#06 round rubber band

150mmx20mm flat rubber band

Springs

0.5x5x5----1 piece

0.5x5x10---3 pieces

0.5x5x15----1 piece

Additionally for the two-part shell structure it is recommended to print with normal infill for a smoother finish others can use tree infill for small parts an infill of 50% or more is recommended