K'nex Double-Barrel Hybrid Gun

Introduction: K'nex Double-Barrel Hybrid Gun

About: I do K'nex...a lot. It's fun to mess around with new mechanisms, and to learn about basic engineering. I build mostly guns, and love to build new concepts. I will start posting some of my 'unposted ideas' in f…

Hey guys! This is my new gun, a double-barreled, bull-pup/regular magazine gun. This idea was given to me by JonnyBGood, and I think he is going to like it. Basically, there is one barrel that runs off of a magazine that is in the front. The other barrel runs off a bull-pup magazine. However, they both run off of the same trigger. To keep the gun compact/smaller, I had to put the second magazine on top of the gun, giving it a somewhat weird, yet intriguing look. Just like my bull-pup gun, it fires two bullets, which are a gray one-slot connector with a cut green rod, (yes the cut green rod is necessary). So basically, this is my bull-pup gun with a magazine added to make it more fun to mess around with. Also, both magazines hold 8-10ish rounds at most. So, here are some Pro's and Con's.



Decent Range 25 feet.

In my opinion, looks kind of cool. Once again, it looks futuristic.

Two magazines

Two shots at once

Good Trigger


Compact and lightweight



Neither of the magazines are pre-loadable OR removable.

Can't use the stock when it is pulled back. This is simple to fix, by adding one unit/row to the back of the stock.

One bullet will usually go farther than the other.


Thanks for taking a look! To find more of guns like these, visit my channel, or subscribe! Please leave your thoughts in the comment section below. Also, I am needing/looking for new ideas and concepts to build. If you have any suggestions, please post them on my Orangeboard, or comment below. I don't care if it's an idea that seems ridiculous, I'll at least try it out. I just like a good old challenge.


I might be posting a video of this gun shooting, but don't count on it.

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    8 years ago

    Well, if one thing is for sure we definitely don't have the same angle on how I would go about this, but that's what makes any idea unique how you interpret it. I'm not a huge fan of the top magazine but I also realize the mechanism has to go somewhere (preferably on the inside). I also like the rounded appearance of the gun in general. Overall great job!


    Reply 8 years ago on Introduction

    Yeah, I don't like the top magazine either, but the way this was built, I didn't have enough room to put another mag on bottom, or even in front of the trigger. The ram wouldn't reach that far, and I couldn't figure another way. Thanks for your feedback though!


    Reply 8 years ago

    I understand, part of the challenge of the concept. I don't normally aim at something easy. =P