Introduction: Competitor V

Picture of Competitor V

Competitor V! Thanks to the Competitor forum topic I learned that people were looking for more interesting guns, mechanism and shape wise. Since then I've kind of developed this futuristic style into more of a smooth vision that seems to settle well with a lot of people. As the Red Book of Westmarch said awhile ago " I think I found my niche".

Anyway, this is Competitor V! It is a hammer powered K'nex gun. It may not have super ranges at 25-30 feet, but it is a great close quarter combat weapon. It also has preloadable magazines and the mag release is easily triggered with your shooting hand. Competitor V has proved that it's more than capable of being the newest Competitor in my oldest and definitely hardiest series!

So let's stop talking and let's start building!

PLEASE NOTE: This gun is underperforming to my previous set range stats. So please know this gun may not meet your expectations, and I apologize for that. If you create a solution for the gun I'd always be glad to see it. Expect a new Competitor V concept sometime soonish.

(For all of you who don't mind reading more, the white gun in the pictures is project Day. Project Day is basically the same as Competitor V, the only difference was that Project Day was built to be cleaner internally and have less friction for improved range. In tests though Competitor V destroyed Project Day with consistent long range. Just goes to show that if it isn't broke, don't fix it. Project Day was useful for making entertaining pictures though =D)

Step 1: Body Panel (Base)

Picture of Body Panel (Base)

So if you haven't figured it out by now, K'nex guns are made of layers. Let's start by building the first layer. Picture 3-6 shows blue rod placement.

Step 2: Layer 2 Internals. Slow and Steady....

Picture of Layer 2 Internals. Slow and Steady....

I took lots of extra pictures of the parts and where they go, so this step is kind of drawn out. I figure that once you get them all placed the 4th layer will be a repetition (because it is).

Step 3: Grip and Trigger

Picture of Grip and Trigger

Okay, I admit it! I was a lazy ibler'! I didn't take the grip apart. If you need to know how to build it, it's exactly the same as Competitor IV's Grip. Check out Competitor IV for disassembled view however leave off the brown connector and trigger (from Competitor IV). Everything else is fairly easy, have fun building!

Step 4: Layer 3 Internals

Picture of Layer 3 Internals

Alright after this step it's all downhill! If you have any questions feel free to ask! I'm always floating around this site at least once a day.

Step 5: Layer 4 Internals

Picture of Layer 4 Internals

No more freaking training wheels! These are all the pieces from Layer 3, so I just put them all on in one step. If you're confused feel free to ask questions!

Step 6: The Second Body Panel and Bands

Picture of The Second Body Panel and Bands

Let's finish this gun! In the first picture I laid out all the small assemblies you'll need to finish the gun (minus one a little later in the same step). I changed the color of the large orange connector bar to show how I put it together, and then changed it back to black parts again when I show it assembled. So please don't get confused, if you do I'll clarify. Other than that notice the gray connector assemblies and the blue rods with the brown connectors aren't used until you attach the second body panel. Picture 13 show a bunch of miscellaneous connector I used to secure the two body panels together. You don't need to do this step exactly as I did it! As long as all the blue connectors have something snapped to them the gun will work fine.

Step 7: Magazine

Picture of Magazine

Well I was lazy again... Sorry. Anyway I think this step is still very straight forward with some clarification. After picture 4 attach another panel shown in the first picture. Then fill all the holes in the yellow connectors and green connector with green rods. Make sure to add some tape to the side of the green rods before inserting them. This will add a lot of friction that will prevent the green rods from falling out, or preventing the layers separating. After you've built the magazine you're done! My last picture in this step show the magazine orientation when inserted correctly,( mainly showing the green connectors on the magazine facing the back of the gun). Oh, and make sure to pull the hammer back at least 2-3 clicks before inserting the magazine.

Step 8: You're Done!

Picture of You're Done!

Congratulations! You have your own Competitor V! Enjoy, and if you have any questions or pictures of your final project, feel free to share them!

(Picture 2: Hunter999 isn't the only one who can make a heart of k'nex! Mine shoots too lol)

(Picture 3: Shadow)


JonnyBGood (author)2014-09-03

Just to let you guys know, I have been listening to your comment about problems with the guns trigger and performance! I will be working on revisions to the gun as soon as I can and I will let you know so you can give me your feedback of whether or not I've fixed the problem.

I'm sorry this gun did not live up to it's expectations, and I will have revisions to it to make it what I have described!

JonnyBGood (author)JonnyBGood2014-09-03

Well at least this was a much needed wake up call. Thanks guys!

DezLegacy (author)2016-01-17

i literaly bought the 700piece box and still don't have enough to make the zip

DezLegacy (author)2015-07-31

hey I put in a flexy rod instead is that alright?

JonnyBGood (author)DezLegacy2016-01-15

A very late response on my part but a flexi rod may work. I kept having breaking issues on the joints so that would prevent it from occuring.

DezLegacy (author)JonnyBGood2016-01-16

ok thank you

Linkin_J_Knex (author)2015-12-16

Another epic gun :P. If I had a "top 5(or 10) k'nex 'iblers" you would definitely be in the top 5. All your ibles are so innovative and the builds have lots of clarity to them. great job :)

JonnyBGood (author)Linkin_J_Knex2016-01-15

I'm so sorry I haven't been around to properly thank you for building my stuff. So Thank You so much for building my guns.

My guns are slightly innovative because I get bored of doing the same thing, so I'd always challenge myself with combining a sci-fi aesthetic with whatever mechanism I was playing with at the time.

Linkin_J_Knex (author)JonnyBGood2016-01-16

Yeah, the same thing gets boring =) I had a great idea but I'm not sure I can execute it. If I can't I'll show you =(

*show you =)

matthew9876 made it! (author)2015-06-10

I can't get mine to shoot very well but it is a good gun

I put something on the clip ⬇️

JonnyBGood (author)matthew9876 2015-06-15

Thanks so much for sending pictures! I do apologize for the lack of performance this model had, I plan to have a much better firing mechanism in my Competitor VI. Overall though I'm glad you liked its appearance enough to build it, and I hope you'll try the new model when I finish that one.

matthew9876 (author)JonnyBGood2015-06-15

Yes I will build the new model. Right now I am building the hungry hippos.

JonnyBGood (author)matthew9876 2015-06-15

Wow! thanks! Seriously, I'm always thrilled when people build my stuff. Happy building!

CorgiCritter (author)2015-02-23

I just wanted to tell you that this is your best looking gun ever! I have gone back and forth between thinking of building and not building. Perhaps I will one of these days. Favorited.

JonnyBGood (author)CorgiCritter2015-02-25

Well thanks! I was real happy with how this turned out as well. This guns performance unfortunately does not match its look.
I got a new hammer design, but it wouldn't fit in this chassis. Back to the drawing board...

CorgiCritter (author)JonnyBGood2015-02-26

You are welcome. One of these days I might try a simple pin gun using this body as I love the looks on it.

Lucas The Boss (author)2014-11-28

I remember seeing you comment somewhere that you had a notebook full of ideas of mechs for knex guns, well I'm running out of ideas and I'm tired of replicas. If you could maybe just give me one or two ideas. If you can't I understand but my email is or

Hey, sorry for the late response, I'll email you some of my ideas tommorrow evening. I've been pretty busy with school lately but that doesn't mean I can't share some ideas.

Ok thanks! :)

A little late (as normal) but I sent one of my ideas. I'll send another couple later.

Delta-13 (author)2014-11-19

Cut parts? I plan on building if not. =)

JonnyBGood (author)Delta-132014-11-19

I don't use cut parts on my competitor series. So no. However it doesen't perform how I siad it would, so if you're looking for performance try Competitor IV. If not, maybe it will work better for you like it did me.

Delta-13 (author)JonnyBGood2014-11-20

How about I make both then compare them? =) Thats gonna be my plan unless, of course, I have to little parts. I currently have Knexinventers pool table built, so I have little parts right now. Im suremitll work though. =)

JonnyBGood (author)Delta-132014-11-20

Cool, tell me how it turns out! If anything, you can make Competitor IV look better, or make Competitor V work better.

Delta-13 (author)2014-11-20

oooohhhh, the competitor iv looks a little less... well nice than the competitor v. Oh well.

Miniboom (author)2014-11-10

Jonny this is your best gun yet! I don't care if it's rubbish, because it looks so cool!!!!!!!

JonnyBGood (author)Miniboom2014-11-10

Hey if you want it to be decent try making it pin powered.

ttran-1 (author)2014-09-06

Um..... how do you hold the gun. It kind of feels awkward when i try to hold it because it has no stock......?

JonnyBGood (author)ttran-12014-09-06

Awkward? Well it is a pistol.... and the hammer mech kind of occupies the entire rear side of the gun. I am considering a stock for the revised version and I'll keep that in mind.
The performance was okay? Or did you also have similar problems?

ttran-1 (author)JonnyBGood2014-09-07

well most of the problems issued in previous comments by other knexers are the same as mine.

JonnyBGood (author)ttran-12014-09-07


ttran-1 (author)JonnyBGood2014-09-13

Well it is still good so dont give up! now that you have been hearing about it that means its still a concept so that means that it does have the potential to work!

ttran-1 (author)ttran-12014-09-13

by "hearing" i mean hearing problems... my bad forgot to put that in....

JonnyBGood (author)ttran-12014-09-15

Yeah, well unfortunately that's why some guns are concepts. They're mechanisms only have so much potential, including this one. The two joints on the pin reduced the amount of power the pin could handle, and even when I removed them from the mechanism and replaced it with another internal ramrod it wasn't better. Hammer guns seem to have kicked my butt again so for my next attempt at Competitor V I'll be returning to my good friend the ramrod.... I'm back to the brainstorming phase we'll see what comes out of it.

You made a video yet?

Not yet, especially because my small Armageddon of complaints regarding the trigger and range. I plan too eventually, but making something that works as well as I said it would comes first. I'm kind of tempted though just to tell them to put a regular ramrod on it.

Ah, I see. You didn't have the same problems with it, did you? I find that odd, I mean, after all, if they followed the instructions exactly as you put them, they should get exactly the same results. But then again, I have see the same thing happen with other guns, BM's SA pistol, for example. Sharir1701 and I both build the NAR and didn't get the same results other people did... You just never know.

Yeah it just bothers the heck out of me. (if you don't want to read my ramble I bolded the conclusion) From an engineering standpoint I had physical evidence there might be a problem, because when I built the second one it didn't work as well. I blamed the problems on me trying to clean up the internals but really this should have meant that this gun doesn't function right!

Again as an engineer I'm kind of handling this like a recalled product, trying to create a repair to the current gun without changing the body. I've tried my first two fixes to the gun with no success, I'm on my last resort. Other than that I'm contemplating complete recall!

If my last resort doesn't work, I will be changing the Intro of this ible' and start working on a new Competitor V, because this gun does not perform up to my standard or to anybody else's.

Unlike the Blue Mullet, or even with you and Sharir with the NAR, I don't blame the fault on the construction, builder, or even the way it was constructed. I blame the final product and the fact I built something that does not perform consistently. According to the comments, they suggest that my consistence is 1:7 (I built 2). That means there's a 14% chance that my current Competitor V will work as I have described, which is absolutely pitiful.

So a summary of a long story, people are building it right, the gun itself cannot function in a consistent manner due to: the pieces usage, design, and environmental related factors.

Ah, this I understand. So, a revamped Competitor V, huh? Sounds like a hassle, AND a ton of fun. LOL, enjoy!

Remington pics
improvements new mech, mag lock, and a preloadable magazine.

Hmm... Well, first off, great start! Thanks for collabing with me, its all awesome!

Secondly, when I get the chance, I'll get you some update pics, and we'll see how well that transfers into that new mech of yours... Speaking of which, you got any internals for me? Third and lastly, I think the grip is one place where we can splurge. I have finally found a really, really, really great grip, so I'll get pics of that for you as well.

As always, great job, and I can't wait to see where this goes!

P.S. Lets do whatever pictures sharing we need to do on each others home page, that way we can make sure each person gets a chance to view the pics. =D

P.S.S. Do you want to post the R5 on your page or on mine?

I think yours will work. I'm sorry I haven't got my internals up yet, I kind of just built them to fit and then after I was done I realized it doesn't work with more than one rubberband on the pin =P..... I'll see if I can fix that when I find time. I can get you a picture of the mechanism I'm trying to fix if you want. It does work with preloadable magazines.

JonnyBGood (author)JonnyBGood2014-09-13

Alright I'll get the internal pictures you need and some other ones maybe in an hour or so. I posted the pics here because its easier for my phone to add pictures to ibles than the orangeboard. I'm just lazy to open my laptop

sonic broom (author)2014-09-08

I made it lots of cool ideas to try out.

it looks cool to but I think it needs a more comfortable handle it hurts a little to hold but i think it is a great gun. Hope to see more cool guns in the future

JonnyBGood (author)sonic broom2014-09-08

Well thanks for building it! I know this gun fell short range wise, so I guess I went heavy on appearance and not enough emphasis on performance. You can expect more cool guns from me and hopefully a performance model of this gun next!

JonnyBGood (author)2014-09-03

Same issue as the others I'm assuming? I haven't got around to trying to revise my trigger mechanism yet. But I'll let you know if I do. (Also I did work on this gun a week before settling on this orientation, which apparently is still problematic)

Lucas The Boss (author)2014-09-02

I built It yay, I like the mags and the mech but the range is sucky bro but it is something new so I guess all it needs is some reinforcing in the hammer and a much stronger trigger. Good job though

Yeah I've been hearing a lot of negative comments (which I should have seen coming) about the Hammer trigger mech. As you can see I built another version of the gun for this ible and the trigger on it was a pain! I'm not sure why it worked on mine and sucked on every other one.... Whatever, I'll see about a revised trigger mech and maybe that'll fix the issues. Regardless thanks for building it!

JonnyBGood (author)2014-09-01

Well if anything I suggest a different trigger mech. Other than that I'm also willing to try this idea again because it keeps the ramrod inside the gun which makes it look better.
Oh and thanks!

About This Instructable




Bio: Hello. I'm JonnyBGood! I'm a college student who now has a degree in Mechanical Engineer Technology. (MET) (excessively worded to mean a person ... More »
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