Project knex (lego) sniper VERSION 2 quarantine project!! Would like some physics insights to help optimize my new design (see comment section for my question/write up). : r/engineering
Working LEGO SNIPER RIFLE (Powerful bolt action) - YouTube
Lego Sniper [Mechanism] - YouTube
Lego working XPR-50 sniper rifle instructions
Kevin183 Working LEGO Kar98k from BrickLink Studio