About this 3D model

Non-printed parts list: Spring 1.6*30*100 one. (Wire diameter 1.6, outer diameter 30, length 100). Optional O-ring 1.5*20 two. (Wire diameter 1.5, outer diameter 20). Without O-rings, the score is around 15. Some replacement parts have notches, which are smaller gap versions. (The small gap launch tube will make the soft bullet fit tighter, and the small gap piston will make the air seal better)