Sometimes you need to grow up, which means you have to stop playing with knex! Kids who like knex usually are interested in engineering and technologies. But when the kids get older they should learn how actual machines work instead of keeping to themselves while building obsessivly complicated knex contraptions.
Whoever made this gun is probably pretty smart, but if he would focus his time on something better, he could create new technologies that could benefit the world. He might not be able to do that now, but he might build his knowledge of various technologies so that he can make new discoveries in the future. Knex are a waste of time.
