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this is my new knex semi auto blowback shellejcting pistol with removable magezine, video and instructions will be uploaded later, the mechanism i invented myself and its awesome.
The World of K'NEX Gunsby The Red Book of Westmarch
K'nex Blow-back Pistolby knexguy237
Review: Blue Mullet's K'NEX Semi Auto Blowback Pistolby The Red Book of Westmarch
K'nex Blow-Back Full-Auto Rifleby knexguy237
MY KNEX WASP WITH MAGAZINE!!!by RandomCommenter
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