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this are my new knex semi-autos (littlebit based on the kls v2.0) they are true semi auto with non removeable mags
Knex Semi Auto Pistol with Removable Magby Killer~SafeCracker
truely semi automatic knex gunby gtbike bmx
knex semi-auto, blowback, shell ejecting, pistolby voor jorn
K'nex Pseudo Semi Auto Pistol V2by ~KnexBuild~
The Semi Auto, Blowback Pistol Instructions!by Blue Mullet
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