My Knex AK- 47 Model By smithinator in LivingLEGO & K'NEX1,803114Save PDFFavoriteIntroduction: My Knex AK- 47 ModelBy smithinatorFollow More by the author: About: my top 5. 5.ajleece 4.Knex builder freak 3.The Jamalam 2.Barrax 1.YOU! More About smithinator »This is my third instuctable and i hope you like it.