K'NEX FN Five-SeveN V.2

About: K'NEX gun builder here at Instructables. More or less retired from the community, but I still pop in now and again.

Who doesn't love a good secondary? After all, a good secondary is the gun to go to when your primary is out / unusable.

Lets talk about the FN Five-SeveN, my favorite pistol of all time. My earlier version is one of my most well known instructables, and as this is the case, I thought it was about time for an update.

This version is better than the original in almost every way. In the first place, it is more accurate looking. In the second place, it is much more powerful than its predecessor, and lastly, it is infinitely more modular.


- Great range for a handgun: 30 - 50 ft.

- Super comfy

- 8 - 10 rd. magazine

- Removable magazine

- Really great sights

- Accurate looking

- Good operation

- Very modular

I've provided internals for you guys, and if any of you guys get a chance to build it, get me some pics and I'll give you a link to a secret web page with a Tac-Pac.


-The Red Book of Westmarch



  • Arduino Contest 2019

    Arduino Contest 2019
  • Tape Contest

    Tape Contest
  • Trash to Treasure

    Trash to Treasure

54 Discussions


1 year ago

Cool i build it and modded it to a desert eagle

im an idiot, I can't build this gun without someone guiding me through it. Are there instructions somewhere?

KnEx FrEaK 1

4 years ago

Nvm i have decided not to yours are good enough

KnEx FrEaK 1

4 years ago on Introduction

hey man i love your stuff super realistic. i built this and wanted to know if i could post instructions for it. i will say you made it.


4 years ago

Upgraded to desert eagle and now shoots purple conectors!!!!

photo-2014-12-02, 4:01 PM.jpg

4 years ago on Introduction

i made it but i have ammo feeding problems, the ammo seems to pop out all over.

Dude, it is great to see you back! I kinda wish that you were still around, I could really use your help on a project that I am working on, called K'NEX Gun: Ultimate. Essentially what I wanted was a bolt action gun that had a traditional AR body. I was planning on making it as perfect as possible, but the mech didn't turn out, so while that idea is on the back burner, I have been building other guns (namely replicas).

As to broken pieces, yeah, I just couldn't help myself. =D

I have a really awesome 1.5 y/o gun that I recently dug out of the closet and realized I had never posted anything about it. No spoilers, but it's awesome, I think it fits your description and ~more~ :D I would never have the time or patience to make a tutorial 'ible, but I will post some pics and a video, accompanied by a thorough written explanation of the mech and just how amazing this gun is. My point is, if you would be willing to try and build it off of the pics and video (of course you can always ask me if anything is unclear and I'll try get some internals and explain as much as possible), I would love it if you were to post it in my name :D. Lol anyway, thanks for the compliments and about the broken pieces, (little spoiler I guess) it has none. I know, an innovative gun that I built has 0 broken pieces?! Lol I tried my best and managed fairly well. I was just as shocked as you might be.

On another topic, I've seen some comments you made on a few other places, which got me interested in this collab project you're working on... Care to elaborate? If there's anything I can help with, I would be glad to ;)

Good luck anyway!

It takes me so flipping long to get back to some people. My bad, I should have gotten back to you sooner.

Dude, you have no idea how much I'd love to see you posting again! That would just make my day! The community is pretty slow (despite the fact that I have between 5 and 10 guns I could post right now), and we could use some more Sharir1701s, Kinetics, and Oblivitous around here.

I'd love to build another one of your guns, after all, I've built the S1 and the S2, why not the S5!?!?

Wait, it doesn't use any broken pieces? Now your walking down JonnyBGood's alley. =D Why ever not bro?

Collab project? LOL, which one? I am not really "in the middle" of any particular one, but I think akshat and I plan on building some AK-74Us... or were we planning on building an HK93... or was that with TheAwesomestDude...? Anywho, yeah, I have collabs planned with other builders, but haven't got any done... yet.

Its good to get an update from you, one every 4 - 6 months will keep me happy, if you can spare the time! =D

Haha sorry I've been away for a while... Idk when I'll get off my butt and post it (I'm kidding I'm fully booked right now as far as work load... I've got enlistment stuff to take care of, licenses, school, more stuff I won't bore you with...), but I'm hoping sometime before the end of this year :P

Fuzzy feeling inside, being appreciated. Thanks man :D

I see you've also been less active than you used to... What's up with that? You're the heart of the knex community right now as far as I can tell. What gives?

Its all good bro, its all good. Yeah, I've been keeping pretty busy too, I just got a job and am starting school up again, so there isn't much time left for dilly-dallying. =D (not that I do that much anyways, if you know what I mean)

Enlistment stuff? Of what kind? Are you planning to join the military?

Less active? What are you talking about (LOL)? I just posted 6 instructables for the K'NEX contest, and both my bro and I were finalists (me with my TMP, him with this Galil ARM), which was really cool.

As to being the heart of the K'NEX community, I can't say that I agree or disagree, but I see what you are saying, and thank you for your complement. From what I can tell, BM is the most innovative + active builder here, I just keep building replicas, to my chagrin, but I can't seem to get any inspiration for anything else. I was planning on building an M1216 magazine of sorts that would allow for a magazine'd shotgun of sorts, but it isn't turning out. I'm gonna keep trying though, at least for a little while.


4 years ago

Great gun! I don't think I will build it tho because I don't want to break my other guns! Great job!

1 reply