Introduction: TR18

Picture of TR18

Presenting.... TR18. One of the greatest Knex guns in the universe.


Also, check out KillerK's slideshow for more pictrues and updates, - TR18  <--Cool box :-)

Well here it is, the TR18. Alot of people really wanted to know how to mae this, so, (with KILLERK's permission) I decided to post it!

Very powerful
18 shot turret
Ram rail
Strong, comfy handle
Strong trigger
Comfy stock
Range- (I got it to 85ft with a white rod, and I easily got 230ft with red rod w/ fins)
Strong design

Quite uncomfortable to hold if you have long arms
Orange connector on ram guide can break if you use too many bands.

So, if you build it and like it, don't hesitate to rate it 5*! Also, please rate, comment and subscribe!


Soo... you like? Of couse you do! Righty'o, Lets get building!

Step 1: Parts List

Picture of Parts List

It never any gun to get halfway through making something then finding out you dont have the pieces! So here are the parts you need!

Yellow- 52
Green- 6
White- 15
Grey 2-space- 54
Grey 1- space- 90
Red- 6
Orange- 7
Blue 3d- 1

Green- 59
White- 48
Blue- 5
Yellow- 37
Red- 4
Grey- 2 
Black (strengthened)- 2 (They can be grey rods if you want)

Blue spacer- 22
Tan clip- 20
Metallic blue clip(This can be changed for a grey 1-space connector)- 1
Ball socket- 1
Y-Connector (Picture)- 2
Small wheel w/ tire- 2
Medium wheel w/o tire (Picture)- 3

Step 2: The Turret

Picture of The Turret

Here is the turret, read the writing and follow the pics.

1-13- Many different angles of the turret
14- Get these
15- Place 3 wheels on like so
16- Another veiw
17- Place the small wheels on like so (It doesnt matter if they are not center)
18- Another veiw
19- Get 1 end like this
20- Carry it round like so
21- Get the other side as shown
22- Bring both ends together
23- 1 side should look like this
24- The other side should look like this
25- Clip them together + this is what you should have.
26- Get this and put it aside with the turret for now. (That clip can be changed to a grey 1-slot   connector later if you want)

Thats the turret done! Arent you excited!

Step 3: The Front End

Picture of The Front End

This is the front end, I am not going to number the pics, as they are all just different angles of the same thing.

1-10- Different veiws of it.

Step 4: The Handle

Picture of The Handle

Pretty simple, again no need for individual pics.

1-5- Different veiws of it

Step 5: The Trigger

Picture of The Trigger

Pretty simple, But I still took a few pics.

1-3- Different angles of the trigger (There is a green rod inside the connectors holding in the actual ram block thing, this is just left like that, when the gun is full assembled, it wont come out!

Step 6: The Stock

Picture of The Stock

This is the stock, Im bored, I feel like labelling the pics :-)...

1- The stock... duh!
2- Another veiw
3- Another veiw
4- The shoulder rest
5- A top angled veiw

Woohoo! Done the stock!

Step 7: The Ram + Ram Guide

Picture of The Ram + Ram Guide

This is the ram and ram guide, follow the pics.

1- Make this (It is a black rod and a ball joint)
2- A close-up of the end (Dont forget to add tape!)
3- Make this- it is the ram guide
4- Another veiw
5- Slide the ram through the orange connector
6- Attach the blue rod on the ram guide to the stock (shown in pic)
7- Another veiw
8- Another veiw

Hmm... boring.

Step 8: Assembly!

Picture of Assembly!

I dont know why, but for some reason,  assembling your model is always the most fun part, as you see your creations come to life bit by bit!

1- These are all of the parts you should have.
2- Get the front end and the trigger
3- Attach the trigger like so
4- Another veiw
5- Another veiw (Make sure the end grey connector looks like that!)
6- Get the stock
7- Attach it to the main body like so
8- Make sure one end of the ram guide is in that yellow connector!
9- Another veiw of the stock and ram
10- A close-up of that connection
11- Get the handle
12- Attach like so
13- A close-up of that connectioh
14- Get the turret and that little blue clip
15- Put the turret in-line with that rod
16- Slide it on like so
17- Attach the blue clip on the end of the rod.
18- What it should look like now.

Yayz! Almost finished!

Step 9: Rubberband Placement

Picture of Rubberband Placement


1- Get 3 rubberbands,I used two #38s and one #64 rubberbands.
2- Attach one rubberband on the ram like so
3- A close-up of one end
4- A close-up of the other end
5- Put a band on the trigger like so
6- Another veiw
7- Take the turret off again
8- Attach a rubberband in the tan clip like so
9- a close-up of that
10 - Put the turret back on and attach the blue clip on.
11- Put the rubber bands over that like shown
12- Do the same on the other side like shown
13- In this pic the gun is upside-down, put the band on like so
14- Another veiw of it the right way up

Step 10: How to Load and Fire!

Picture of How to Load and Fire!

How to load and fire- video style :-)

Step 11: Congratulations! You Are Finished!

Picture of Congratulations! You Are Finished!

Congratulations! You are finished!

Please rate, comment and subscribe!

Step 12: MODS!

Picture of MODS!

These are mods made by KILLERK, any problems, just ask!


KneXFAN200 (author)2016-09-19

The Video doesn't work!!! Can someone tell me how to load and fire?

Good question. O.o The video doesn't work, and then it seems like the white rods have to go through that tan clip! (If they're the ones meant to shoot...)

Dioxx (author)2011-07-30

I got only 6 blue Spacers with what i can replace it? ;)

KneXFAN200 (author)Dioxx2016-09-19

3 blue spacers = 1 grey spacer!!!!!

Annix15 (author)Dioxx2011-12-07


Annix15 (author)Dioxx2011-12-07


The Knex Inventor made it! (author)2016-06-24

Here's mine. Made this a while ago; my first experience with a TR18 turret. Mine didn't shoot that far, but I had to use a grey rod for the firing pin instead of a black rod, and thus it could only hold so many rubber bands before it started to bend. Thanks for posting, Hiyadudez! Favorited. :-)

RandomCommenter (author)2015-04-19

Can you replace the 2 position connectors with anything else such as red 3 space connectors?

gardman3 (author)2013-10-24

its nice but to many parts

~Knex~ (author)2013-04-08

very nice gun i'm going to build tommorow btw (i thin you were trying to spell make* but you forgot the k* so it looks like mae so better change it.

thegreyhunter (author)2012-11-29

i like it! THUMBS UP!

Element Force (author)2012-08-14

I have a question. can you put a Turret 8 shot on it

Elltrell (author)2012-08-12

Had to tap the rods in with a screwdriver and a hammer 0.o

KnexFreek (author)2010-03-06

 (this is on step 2) you never told people that you need to weaken all the tan clips...... (this is for newbs)

Hiyadudez (author)KnexFreek2010-03-07

You dont need to weaken the tan clips. They work just fine.

mrmuffin (author)Hiyadudez2012-07-26

Lol longest comment chain ever

KnexFreek (author)Hiyadudez2010-03-07

 wellll you should. killerk even says so.

Hiyadudez (author)KnexFreek2010-03-07

He may have said that. Doesnt mean you have to.

KnexFreek (author)Hiyadudez2010-03-08

 yes, but I personally find that it helps alot

Hiyadudez (author)KnexFreek2010-07-17

Btw, use italic for things like that, not bold.

Lol we keep getting into smartass (not meant to be rude or innaproppriate)
Conversations like that don't we lol.

they will weaken on their own

The high lord of Knex guns speaks!


rofl495 (author)KnexFreek2010-03-08

check out this tr 4 im working on!!!!!
(it barely works)

Furloy (author)rofl4952011-01-09


TwistedParadox (author)rofl4952010-09-02

nifty design, i like it

MrSillyGuns (author)rofl4952010-07-16

I think it looks cool. I'd love to make it if you put instructions. :)

rofl495 (author)MrSillyGuns2010-07-16

the only new part about it is the turret, so no. I' sure you can make it from the pics and make your own body for it.

MrSillyGuns (author)rofl4952010-07-16

i guess

rofl495 (author)MrSillyGuns2010-07-16

take any single shot gun like the ultra pistil 2 or something and add this turret to it.

MrSillyGuns (author)rofl4952010-07-16

can u show me some more pics of ur turret?

rofl495 (author)MrSillyGuns2010-07-16

I don't have any pictures of it sorry, but it shouldn't be that hard to mak from that pic.

ant ant 33 (author)rofl4952010-03-19

 :/ not bad i guess, that tr18 is enough to make grown men tremble man seriously

travw (author)rofl4952010-03-13

Just do this. Not the mos beautiful gun ever, but it works.

KnexFreek (author)rofl4952010-03-08

 very nice :) 

MrSillyGuns (author)KnexFreek2010-07-16


KnexFreek (author)MrSillyGuns2010-07-16

the tan clips need to be stretched apart a little bit so that the white rod can slide by it much easier. it adds range to the gun

MrSillyGuns (author)KnexFreek2010-07-16

ok? lol

psharpep (author)MrSillyGuns2010-07-17

He's got a point it does help power.

Hiyadudez (author)KnexFreek2010-07-17

It makes no difference =)

mrmuffin (author)2012-07-26

Can u just make the 8 shot turret? will it hook up?

Element Force (author)2012-06-02

I am going to buy some more knex what is the best site

mrknex3000 (author)Element Force2012-06-29

I would go for ebay

lyamhutch (author)2012-06-15

hey ive made it but not sure hw to work it, as the video dosent work. help plzz

knexboy586 (author)2012-04-28

how do u shoot it?

MegaMetal8 (author)2010-05-06

how do you connect all these?!

my fingers kill i cant do it!!!!

any tips?

~Meme~ (author)MegaMetal82012-04-21

Late I know, but hopefully help overs!

Search this link by DJ:

GazZa123XD (author)MegaMetal82012-02-28

ow i cant make the top bit il figure it out friggin hurts all of a sudden knex becomes painfull

GazZa123XD (author)GazZa123XD2012-02-28

i now think killerks tr is over rated and have lost faith in building guns on the internet i got my own designs

About This Instructable




Bio: My name is Hiyadudez. I make stuff. &quot;The greatest barrier to success is the fear of failure.&quot;
More by Hiyadudez:Hidden Chair CompartmentQ-Tip Snowflake DecorationsHidden Drawer Compartment
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