K3 is my new knex pistol, it uses a NEW mecanism to prime the gun, instead of pulling back on a firing pin, you simple cock the top slide back. Like a airsoft gun, or a pistol. It does use quite a few pieces... but it is well worth it.

here is a video of it working

Step 1: Building the Bottom Slide/barrel.

Follow the pics below to build the bottom slide of the K3 pistol.

Step 2: Build the Top Slide.

Follow the pics below to build the top slide for the gun.

Step 3: Build the Handle.

Once again, follow the pics below to bulid the handle.

Step 4: Adding the Trigger

Follow the pics below to corectally wire the trigger into the gun, this step is a bit dificult... so pay close attention

Step 5: Build the Ram Rod and Add the Rubber Bands.

Folow the steps below to build and attatch the ram rod.

You will need to take the top slide off the gun in order to corectaly put the rubber bands on the gun.

Step 6: RE-attatch the Top Slide, and Add Its Rubber Band.

Look at the pics, once again you will need to pay close atention to how it all goes together.

Step 7: Your Done! (how to Shoot.)

Congrats, you have sucsessfully built your very own K3 pistol. cool.

To shoot:
1.Pull back the top slide of teh gun to cock it.
2.Release the top slide, it should jump back to its original position, and leave the ram rod cocked.
3.Put a blue rod into the barrel.
4.Put your finger on top of the rubber band that holds the trigger. (inbetween the rubberband and teh bottom of the gun.)
6.Pull the rubber band downwords.
Look for a pic on an instructable of a new version the instructable is called new Knox gun
LOL. im not married. I do have a girl freind, but im not married. I just like the ring. lol. ~Justin
yer if he is married there are 2 things rong with the position of the ring 1: not on the ring finger 2: not on left hand
so i just got back on instructables, and found this at the time i was 12 and had no clue if i saw a ring i was like omg married
lol awsome... INPORTAT QUESTION...z--- 1. does this gun load itself 2. if so how much amo and wat sort does it hold 3. are there any good substitutes for the half circles cos i aint got 43 lol :p looks good : )
its a cool gun handle sucks though redisining it
This is my favorite gun on instructables but the handle really needs work<br />
The shooting mechanism is VERY inconvenient. I really like the trigger idea though urah03!
pretty sweet gun but the handle sucks thats why i made a new one its awsome i would have added a pic but i ran out of battery.
world best knex gun <br/><strong>rock on</strong><br/>
this gun sucks
its pretty dam av,especially if you have to use oranges and wites instead of yellows 2/5
nice concept, but keep working. im trying to mod it with a real trigger and a removeable clip... but idk how long that will take...
Is this a gun that shoots knex?
How do you like the trigger i added to it?
looks gud
thx fer the image i couldn't think of how to make one
i cant fire it
i agree, the inside of mine is too tight and it just sticks out >.>
yes !
this gun sucks !
it's about the system so wake up
i love this gun! i brang it to skool and showed my m8s and the were gobsmaked lol
how did you make this'
Ok i aint gonna be mean but.... this gun is a -1 out of 10. looks goood but the handle is weak. The trigger is not that good. But at least it looks good.. right?!...
it is under powered and it broke many of the pieces that I put in it
this gun is so awsume
this gun is weak
woooo go ratchet and clank!!....:)
wt monghell
On a scale of 1/10, this is a 2. Sure, it has a cool look, and you load it differently, but: a) Hard to load. If you pull back to far, the slide and ramrod comes off, whipping you in the hand. Also, you usually have to push the trigger into place. b) Bad range. If you DO manage to load it, it has almost no range, even though it goes straight for the floor and skips a few feet. c) It uses 3 rubber bands. for 3 rubber bands, it should go as far as the Fruit Fly. That thigh shoots far. And you only need 2 bands. This thing, goes nowhere slow. d) High k'nex usage. A good gun only needs a few pieces. This went through all of my semi-circles. Overall, don't build it. Keep the creativity, but troubleshoot BEFORE posting it.
agreed on all, except the last statement. all good guns have true triggers, and many use more pieces. u also forgot to mention that this is a block trigger...
you mean so many pieces, and no trigger attached to the block? It does look pretty cool though.
yes on both counts
i loved this gun you rock man!!!! woot go you
sweet but I don't have enough pieces
FOR THIS TINY THING??? TRY MAKING KILLERKS SR-V1 EH... now thats a lot of pieces i tell ya
damn skippy
thats one extra wicked sick dick
The top piece only has twenty two half circles not 24...I see that that can get confusing with all of the pieces. but its a simple mistake I just wanted to point that out to you. and by the way I like the gun it is very nice.
Nice gun! I added my own trigger and a different elastic system
owwwwwwwwwwwwwwwwwwwwww! the rubberband popped in my eye!
hey the knex hater haters m4 i built loaded and pulled the trigger and guess what happened (take a minute and think what happened) the ram/firing pin hit me in the eye
me too

About This Instructable




Bio: I like to blow things up and/or shoot them. haha ya, thats all folks.
More by twisted:How to get a girl: A guide for geeks like myself. How to hold/throw fire, without getting burned!  Make your own Nerf darts. AKA: Stefans. 
Add instructable to: