Knex Mp5 Instructions By Johnhall44 in LivingLEGO & K'NEX1,56941Introduction: Knex Mp5 InstructionsBy Johnhall44IdonthaveasightFollow More by the author: About: My names John,I've been building with knex for 5 years And am currently working on a lever action tube fed shotgun =D More About Johnhall44 » My knex mp5 instructions. Thinking about posting V2. COMMENT!!!! V2 is posted but doesn't have instructions yet. Step 1: BUILD ALL