Introduction: K'nex Barret M82 .50 Cal

Picture of K'nex Barret M82 .50 Cal

This is my M82  Barret .50 caliber sniper rifle replica. It is a Repeating slingshot, with 6 round internally sprung, storeable removeable magazines. It also has a textured buttstock and a folding bipod.

If you like what I build, please rate and subscribe.

Oh, and let me know what ya think. It only takes a second.

Step 1: Main Body Panel

Picture of Main Body Panel

1. This is an overview of what you are building.
2. Build.
3. Build.
4. Build .
5. Connect.
6. Connect.
7. Purple piece. Cut a purple bendy rod to a 2 connector thick rod.
8. Move on to the next step.

Step 2: Inards

Picture of Inards

1. Build 2. (Only one has a white rod)
2. Build.
3. Build.
4. Connect.
5. Attach to Body panel.
6. Build.
7. Attach to Body panel.
8. Build 6.
9. Attach to Body panel.
10. Build 3.
11. Attach to Body panel.
12. Gather 3.
13. Attach to main Body panel.
14. Build 2 (Only one has a white rod).
15. Build.
16. Connect.
17. Attach to Body panel.
18. Build.
19. Attach to Body panel.
20. Build.
21. Attach to Body panel.
22. Gather.
23. Build.
24. Connect.
25. Attach to Body panel.
26. What you should have now.
27. Move on to the next step.

Step 3: Handle and Trigger Mechanism

Picture of Handle and Trigger Mechanism

1. What you are building.
2. Build 2.
3. Build.
4. Gather.
5. Connect.
6. Attach to Body panel.
7. Build.
8. Build 2.
9. Build.
10. Build.
11. Connect.
12. Connect.
13. Attach to Body panel.
14. Build.
15. Attach to Body panel.
16. This is what you should have so far.
17. Go to the next step.

Step 4: Carrying Handle

Picture of Carrying Handle

1. Build.
2. Build.
3. Connect.
4. Attach to Body panel.
5. Go to the next step.

Step 5: Fake Barrel and Muzzle Brake

Picture of Fake Barrel and Muzzle Brake

1. Build 2. (Only one has white rods)
2. Build.
3. Connect.
4. Build/Gather.
5. Build.
6. Connect.
7. Finish it off.
8. Connect.
9. Attach to main body.
10. Go to the next step.

Step 6: Other Side Panel

Picture of Other Side Panel

1. Overview of what you will be making.
2. Build
3. Gather
4. Build
5. Build
6. Build
7. Connect
8. Connect
9. Close it up.

Step 7: Finishing Touches

Picture of Finishing Touches

1. Build.
2-5. Attach to the gun.
6. Build.
7. Attach.
8. Don't forget to build a magazine!

Step 8: Removeable Magazines

Picture of Removeable Magazines

Magazines for this gun are 6 shot, internally sprung, and storeable. They can be swapped out fairly quickly, too.

You can figure out how to operate and build your own mags for your gun with the pics.

Step 9: Bipod

Picture of Bipod

The bipod is a folding bipod, Inspired by Oblivitus's Z35.

Step 10: Loading and Firing

1. Cock it by rotating the rachet  until the trigger locks.
2. Pull back rubber bands and lock them in the rachet.
3. Push ammo down and push the left rubber band to the other side of the ammo.
4. Pull trigger.
5. Repeat.

I got 50+ ft with one rubber band.


33devon (author)2011-10-31

how far does it shoot and what is the lengh and is it stable (does it twist or bends)

~KnexBuild~ (author)2011-06-04

what makes this 50. Cal? The length of the mag?

rec0n (author)~KnexBuild~2011-06-27

It is not .50 cal, it is a replica of a .50 cal rifle.

~KnexBuild~ (author)rec0n2011-06-27

Oh, I didn't know that 5*


jammy5 (author)2011-06-27

it took me 3 hours to build it but it was worth it :)

rec0n (author)jammy52011-06-27

Thanks! Check out version 3.5, it's even better.

Abcwtfidontcare (author)2011-03-11

Kjo është epik! Speaking in Albanian is fun. :D

rec0n (author)Abcwtfidontcare2011-06-27


stubbopolis (author)2010-08-04

whoa, dats pretty long. i'd say as long as metabois intervention!

rec0n (author)stubbopolis2010-08-14

V3 is as long as the intervention. :)

superbestknex (author)rec0n2010-12-06

great instructions

superbestknex (author)rec0n2010-12-04

how far ddoes it shoot

rec0n (author)superbestknex2010-12-05

like 50 feet. Go check out V3.5. Much better than this.

superbestknex (author)rec0n2010-12-05

thanks i will nice gun

stubbopolis (author)rec0n2010-09-22


rec0n (author)2010-11-22

The 3.5 ible is up. If you can make a better scope, go ahead.

Tuba man8175 (author)2010-08-30

Please make one with a real barrel and muzzle brake

Fred the evil puppet (author)2010-08-20

whoa! nrepeatingg slingshot? does that mean, it cant be... a true semi auto!!!! whoooo!!! finally a barret 50 cal, with ibles and true semi auto!

Yep, it coulb modified to be pseudo semi auto. Check out my 3.5 slideshow.

Smasher555 (author)2010-07-22

I only have of those wheels. Can I just replace them with something else? Another fast reply please!!!

james4 (author)Smasher5552010-08-08

um they are just 4 com fort

knextremist (author)2010-08-03

i built it but sorry to say it was really flimsy but i still rated 4.0

Smasher555 (author)2010-07-24

How in the the hell do you shoot this? The band is supposed to catch the bullet but it just ejects the bullet out the side.

rec0n (author)Smasher5552010-07-24

change the blue rod of the bullet to an orange connector.

Smasher555 (author)rec0n2010-07-24

But can you still post some pics of where to put the bands and how to cock it please?

Smasher555 (author)2010-07-23

Where do the bands go? Can you post some pics of that please?

Smasher555 (author)2010-07-22

This step step is so f***ing hard. >:(

Smasher555 (author)2010-07-22

I mean I only have ONE of those wheels

Smasher555 (author)2010-07-20

What is the approximate range, power, and accuracy of this? Please reply fast!!!

rec0n (author)Smasher5552010-07-20

Pretty accurate, 50 feet with one band!

Smasher555 (author)rec0n2010-07-21

O.K. thanks. I might build it soon. But can it handle more bands? Another fast reply please.

rec0n (author)Smasher5552010-07-21

It can handle more than 5.

MiniBr1t (author)2010-06-26

that could probably some touch ups but that is a great replica high ratings for that, great job

knextremist (author)2010-06-07

these mags are f-ing BEASTLY

rec0n (author)knextremist2010-06-07

Thanks! does that mean your'e building it?

Hunter O. (author)2010-04-08

wow... thats really good

Woox (author)2010-04-08

Does this use over like 120 half moons? P.S awesome gun i'm gona build but the only thing is that it won't be able to fire because my rubber bands suck...

rec0n (author)Woox2010-04-08

It uses about as many as the Z35. tie your bands together.

shadowninja31 (author)2010-04-07

the barrel is bending down.....

rec0n (author)shadowninja312010-04-07

Its actually quite stright. i never had any sag. the muzzle brake is preety stuborn, and likes to turn, though.

shadowninja31 (author)rec0n2010-04-07

Well in a couple pics it looks like its sagging

rec0n (author)shadowninja312010-04-07

well mine never did.

shadowninja31 (author)rec0n2010-04-07


MegaMetal8 (author)2010-04-06

pretty awesome

rec0n (author)MegaMetal82010-04-07


DJ Radio (author)2010-04-05

This is pretty cool, except for maybe the scope and the front of the barrel.

rec0n (author)DJ Radio2010-04-06

you mean the muzzle brake?

thecrow117 (author)2010-04-05

5 but a tip is a scope and reignforce the barrel a bit

altair ibn la ahad (author)2010-04-05

this is <or= to PWN

About This Instructable




Bio: I'm an intermediate knexer who builds replica guns and performance guns. If you would like me to make a replica of a gun, just ... More »
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