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This is a knex slingshot rifle I built it uses 5 rubber bands and can shoot an estimated 100 feet with the sipriani rifle V20 ammo I give ...
K'nex Ball Machine Lift: Giant Ball Catapultby Mechanical Master
knex ballby nattay
knex food holderby nattay
Knex Usp 45 --- Review ---by entenie-1995
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