KNEX GRENADE LAUNCHER

[bikabika201]

what is the purple ones..

??

[Allenbball24]

Where / how do you put the purple?

[knexwaeponchef]

good thing. simple design but effective with good grenades

[MrBritboy75]

Good video you should put that on a rifle

[drew77997]

@MrBritboy75 thanks for the idea i will

[aHeadshott]

thanks i used it!