K'NEX GunsBy NatNoBrains in LivingLEGO & K'NEX1,3588Favorite I will add yours if you leave a comment (If it's good!) I will add yours if you leave a comment (If it's good!) Semi-auto K'NEX Gunby irwinner in LEGO & K'NEXKnex Semi-automaticby (your name here) in LEGO & K'NEXHow to Make Mr. Doomsdayby Killer~SafeCracker in LEGO & K'NEXTrue Trigger Knex Gun/Pistol by Bannana Inventorby bannana inventor in LEGO & K'NEXMoxx's Oodammo Pistolby moxx in LEGO & K'NEX