Introduction: Knex Halo 2/4 Battle Rifle Replica.

Picture of Knex Halo 2/4 Battle Rifle Replica.
Update 12/16/12: In light of Halo 4's new battle rifle, which has angles and curves this replica doesn't match, I am here to make a note that this was supposed to be based off of halo 2's BR.  Due to a recent comment, I have updated the title as well as add this note to reflect the new game's release.

Behold, possibly the best knex Halo Battle Rifle replica ever made in terms of looks.

Unfortunately, it has a few downsides. The mech doesn't work first of all. I have other things I want to do, I've been working on this for over a month now, and I don't want this project to go to pot because it looks so damn good. So here is what I am going to do:

I will post instructions for the gun "As is". If anyone wants to fix it and make it work, be my guest. You can make it single shot, or mag fed, whatever, as long as it works without butchering the look. If anyone does fix it, they should make a video of it shooting, and send me the raw file over Skype (My skype name is dj_jazzy_jeff1, if you aren't already in my contacts, say that you fixed my BR in the introduction message)

If I like your fix, you will then be a collaborator on this instructable, changing all the steps so they build your version. I will give credit to you for fixing the gun, but I must maintain the majority for making the gun look like it does. You will receive a patch and a subscription if you help me.

In the meantime, I'm touting this as a non-firing model with parts of a mechanism in it. Don't call me hypocritical for asking other people to make their replicas shoot, because believe me, I made the effort. Nobody who I have asked didn't even bothered trying.

NOTE: Building your improved version in metallics is optional.

Here's a video of it:

Step 1: The Front Bit.

Picture of The Front Bit.

This bit holds the bands and whatnot.

1. Make this layer.
2- Layers 2-4 on layer 1.
3- Close up on layer 3.  It's built a bit differently near the front.
4-6: Make the front barrel.  It's a bit tricky, be careful.
7- Connect the barrel to layer 3.
8- Add this little bit.  It makes the assembly sturdier.
9- Make the grip thingy
10- Add it to the rest of the gun
11- Add in another layer 1 and this is what you get.  Move onto the next step.

Step 2: Top Rail.

Picture of Top Rail.
This is the top rail of the battle rifle.

1- Build 2 of these outer layers.
2- An outer layer with innards.
3- close-up on the rear.
4- Close up on the front innards.
5- finished rail
6- how to connect to the front bit.

Also note there is a setup in the back that is there to make the gun have more realistic angles. �I forgot to take pictures of it, so here's a video instead. �Skip to 1:25 and watch from there to 1:45 to see how it's made. �The video is an old, incomplete version of this gun but it's still the same:

Step 3: Scope.

Picture of Scope.

This connects to the little Yellow connector on the top rail that was sticking out. �It's pretty simple. �If someone can make a better one by all means do so.

Step 4: Stock.

Picture of Stock.

Here's the most complex part of the gun- The stock.

1- Make 2 of what's pictured.
2- filler stuff.
3- close-up on trigger
4- The angled bit on the stock
5- The final thing.

Step 5: Trigger.

Picture of Trigger.

Here's a few pics of the trigger.  Please leave the orange connector disconnected on one side as you will have to actually put it THROUGH the gun.  This should be put onto the gun before the handle.

1- The front of the trigger
2- The back.  Please leave the orange connector disconnected on one side.
3- How the trigger actually stops the ratchet from turning.  Note the use of spacers.
4- Picture 3 with the rod removed
5- the top rail off so you can see it's a double-ratchet.

Step 6: Handle.

Picture of Handle.
This is a custom angled handle, not 45 degrees like most guns, and not straight out 90 degrees either.

1- The bit the handle connects to (Includes trigger guard)
2- the handle itself.
3- Combine.
4- Connect to gun.

Video of me constructing the handle:

Step 7: Mag

Picture of Mag

This mag is held in by friction.  There is a difference between top and bottom.  It won't fit in upside-down.

1- The mag
2- one side removed.

Have fun showing off your new knex Halo Battle Rifle!

Step 8: Knexsuperbulderfreak's Version (Firing).

Picture of Knexsuperbulderfreak's Version (Firing).

This is my version i took all these pictures to help others make it.  Although the rail is a bit too short but other than that it's fine.

IMO, it looks like the halo reach DMR  now, minus a few details on the barrel.  -DJ


2000smartkid (author)2012-11-04

I think you could make the instructions more detailed. If you don't know what I mean, then go to Seleziona's channel on this website and look at a few of his instructables. They are very detailed and easy to understand.

DJ Radio (author)2000smartkid2012-12-16

I was lazy.

sandmman (author)2012-11-26

Back in the days of Halo 3, this looked ok. But it looks a lot like the new BR from Halo 4, so nice job planning ahead :P

DJ Radio (author)sandmman2012-12-16

I have updated the title to reflect this.

spricer988 (author)2011-12-19

the stock looks a bit to big but overall 5*

mahmel (author)2011-12-17

Never ealised how great it is. I've made it, it's awesome!

PotatoCoffee (author)2011-12-08

Nice job! It looks really realistic!

Puddock (author)2011-12-04

I love halo guns, and this is a perfect knex version of a battle rifle. I would love to build a knex DMR, as it is my favorite halo weapon next to the spiker.

DJ Radio (author)Puddock2011-12-07

WIth enough mods this could become a DMR. Honestly though I liked the BR better than the DMR. BR spread was better than the bloom the DMR has.

beanieostrich (author)2011-10-18

What sort of range did the firing version of this gun get?

with mine i got atleast 30 feet but i never actualy tested it outside so im unsure

Yup. Well mine could get 100ft with a string of 3 #64 bands.

i used more then that on it

Thats good to know.

DJ Radio (author)beanieostrich2011-10-20

Dunno. Never really asked.

beanieostrich (author)DJ Radio2011-10-21

Ok. I had intentions on making this gun; the only thing I am not too sure about is my piece amount. If I ever get around to building; I will tell you what range it gets.

I am currently making the gun now. And modding it as I go.

I know I am triple-posting but your gun gets 105 ft range.

DJ Radio (author)beanieostrich2011-11-06


beanieostrich (author)DJ Radio2011-11-06

Here is my version. I know its been butchered a little but yea.

DJ Radio (author)beanieostrich2011-11-07

What is this I don't even...

beanieostrich (author)DJ Radio2011-11-08

Its just my version of your gun. I knew you wouldnt like it.

TheRacker (author)beanieostrich2011-11-06

Doesn't so much look like a battle rifle.

beanieostrich (author)TheRacker2011-11-07

I know, thats why I said it was butchered up. I just felt like modding it to my liking.

DJ Radio (author)2011-11-12

Time to celebrate:

DJ Radio (author)beanieostrich2011-11-08

I like it but I don't know why you messed with the front end.

dynno97 (author)2011-07-17

Thanks DJ, Almost broke my computer screen because of that .gif LOL

DJ Radio (author)dynno972011-07-20

Problem, officer?

apples!!!!! (author)2011-05-01

I have to admit, that's sexy.

DJ Radio (author)apples!!!!!2011-05-01


apples!!!!! (author)DJ Radio2011-05-25

You know, I think it's interesting how you and I each built a Halo weapon in the exact opposite manner. You built a perfect replica and failed with the mech, I built a working mech and failed with the looks. I think I'll work on this this soon because it is seriously one of my favorite builds.

DJ Radio (author)apples!!!!!2011-05-26

You built a halo replica? And thanks! FYI, the original mech was taken off of a gun on Jollex's Youtube channel. That's just so you have something else to use as a reference.

apples!!!!! (author)DJ Radio2011-05-26

It's not a replica by any means, but I added it to the photo 'ible I posted recently. It's more of a concept that I tried to make look like a Brute Shot since no one else has made one, lol. And ah, I might look into that...I'd probably try to start fresh, though.

DJ Radio (author)apples!!!!!2011-05-26

Oh I thought you might try and make this and make the mech work. Starting fresh is fine though.

apples!!!!! (author)DJ Radio2011-05-26

Ah, I could try this first and see where I get, but I tend to do poorly when trying to work off of other peoples' ideas.

DJ Radio (author)apples!!!!!2011-05-27

Ah, I guess it varies from person to person then.

apples!!!!! (author)DJ Radio2011-05-27

It does; that's the wonderful thing about having a community. The problem is that I tend to sacrifice looks to make mechs work(like with my brute shot). I dunno, I'll try my hardest but it seems that even though I built a cannon with a mag, it's dissatisfactory lol.

DJ Radio (author)apples!!!!!2011-05-29

That's alright when it comes to making a performance gun, but in replica land, making it look good is what counts. Some people say that if a gun has a good design and is nice and neat and clean it will also look good in most cases.

apples!!!!! (author)DJ Radio2011-05-29

Meh. I just say that I based it off of a Brute Shot(because I did lol) in the 'ible I just finished. But whatever, it's still at least a try when no one else has something similar to it lol. I still love yours >.>

DJ Radio (author)apples!!!!!2011-05-29

It's not bad lol.

apples!!!!! (author)DJ Radio2011-05-29

That's because no one knows what a brute shot is supposed to look like off the top of their head :P

DJ Radio (author)apples!!!!!2011-06-01

Use a reference pic?

apples!!!!! (author)DJ Radio2011-06-01

That would show all the angles and proportions I got wrong lol, I think I'll stray from that...

DJ Radio (author)apples!!!!!2011-06-05

That's kind of the idea here.

apples!!!!! (author)DJ Radio2011-06-05

Nooo I no make it look bad! It doesn't even matter lol, like five people even know abot that thing anyways.

dsman195276 (author)2011-05-06

Ah, Love the look, it's a shame the the mech doesn't work, but none the less, heres my review:

First of all, the looks are GREAT. Looking at that picture, you hit the nail on the head. It also looks really sturdy, which is always a plus. I like how you pretty much matched every curve that the gun in the picture has. You even went as far as to extend the top of the stock just a bit to match the picture. That's impressive if I do say so. 110% for looks.

The only thing I didn't particularly like about the looks is the scope. It looks a bit out of place if you ask me. I'd love to see a redesigned scope with bendy rods, and some more aesthetic changes. You're got a amazingly designed gun here, no need to ruin that by shoving a average scope on it, I'm sure you're more then capable of making a good looking one ;-)

Now the mech, I had a idea for that actually, ever think of shoving a DD-27 barrel on the end instead? I do think it'd kill the look(You're call though). And if you do, you could put the Firing-Pin right inside the body, along with the trigger(Extending the trigger on the front to connect to the trigger by the handle shouldn't be to hard). You could either extend the firing pin, or just tie string to pull it back with, either would work. I don't have the parts right now to test this out, but I think it'd work well.


DJ Radio (author)dsman1952762011-05-06

The mech didn't really work because it was based off of concept technology. The gun I borrowed it from just so happened to have the top of the stock extended like on the real battle rifle. Thanks for that though.

Also I was running rather low on parts by the time I built the scope, so I had to whip this one up in about 5 minutes. No choice there.

That sounds like a look-ruiner on one hand, but if designed right it wouldn't affect much. Maybe it could be your next project to help you get back in the game?

2000smartkid (author)2011-05-04

that gun is cool

rec0n (author)2011-04-24

I think I might work with this a bit. Looks great, 5*. Great detail.

DJ Radio (author)rec0n2011-04-25

You do that.

About This Instructable




More by DJ Radio:GKTP (I'm back?)Blast from the past:  Knex EZM (Experimental ZKAR mod)The "Super bullet"- Possibly the fastest paper airplane ever?
Add instructable to: