Stroker a Knex Bullpup

About: Knex builder here at Instructables. I build Guns, and, Roller Coaster. I currently build about 2-3 guns a month. I strive to post quality as well as quantity. If you have any ideas for a gun for me to try ou...

This is my new knex bullpup. I have been attempting a bullpup for a while but this was the first I got to work. Honestly I do not like this gun because it is very ugly and I don't like how you remove the mag from behind the handle which makes it a bullpup.

Average range 40 feet
Preload able mags
10 round mags
Mag lock
Fancy mech

Weird position for mags
Not very comfy
Jams frequently

This was just a bullpup nothing special or new, I just wanted to try one. Please don't be to harsh in the comments but I would love to hear from you guys:)

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    13 Discussions


    4 years ago on Introduction

    Well I've seen this up here, I apologize that I haven't got around to comment on it earlier, but that's why I'm here now. =D

    First off great job pulling off a bullpup! That gun format is always the hardest to pull off and you did so fairly cleanly. I like the sharp line you created with the handle guard from at the same angle as the front of the gun, it adds a sharper and more futuristic look to the gun. I will say the only part of this gun I'm not entirely thrilled with is that guard on the back of the handle connecting to mag well, but it's a minor opinion based thing that really doesn't matter. Overall for a first Bullpup you did a very good job!

    3 replies

    Thanks! Finally people are actually telling me what they honestly think about my stuff. I thought that this gun was not good and everyone would hate it but thanks for the feedback! :)

    JonnyBGoodLucas The Boss

    Reply 4 years ago

    Hey, don't discount your work man. Again bullpups are the hardest gun to pull off and yours turned out pretty good.


    Reply 4 years ago on Introduction

    bullpups are really hard to do if you want any range, just getting in a mech that goes in and sometimes catches on the bullet is easy I've found...from this one getting that kind of range it looks like the mech works pretty well. Bullpups, anything with a non-standard mag, and bolt action guns aren't that hard to do if you aren't looking for performance, but getting them to work well is quite a big task.


    4 years ago on Introduction

    Cool gun! Definitely way better than my bull-pup. While bull-pup isn't my favorite, I like the way this gun looks. It's kind of futuristic, yet not at the same time. I'm not very good at naming guns, but my suggestion would be 'Sharp-shooter'.

    3 replies

    Yeah sometimes it takes a bit. I only go through the recent K'nex ible's once or twice a week, so I tend to not comment for a while. But yeah, nice gun!