Knex Bullpup Mag Release Internal Photos By dr. richtofen in LivingLEGO & K'NEX1,331117Save PDFFavoriteIntroduction: Knex Bullpup Mag Release Internal PhotosBy dr. richtofenI listen musicFollow More by the author: About: Hey there. I won't add too much info here, as it'll show up as one big paragraph. I'm not super active anymore, on here. More About dr. richtofen »Here are the internals for my bullpup mag release