Knex M16A4 and P90 Preveiw By smithinator in LivingLEGO & K'NEX3,889339Save PDFFavoriteIntroduction: Knex M16A4 and P90 PreveiwBy 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 »im posting this slideshow for you to decide which of these two guns you want me to post