Knex Pistol - Crossbow Style

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Introduction: Knex Pistol - Crossbow Style

This is technically a crossbow, but it's used as a pistol. It's a crossbow because there is no ram, but there is a trigger. It is powerful with just one rubber band - 15 to 20 ft max range, 10 ft effective range. By effective range I mean the max distance where the round is still moving on a straight path without an arc. This the first gun that I can take full credit for.

Step 1: Gather Parts

the parts you will need are

2 red
3 yellow (required but they will be the ammo)
1 blue
2 white
3 green

12 yellow
1 orange
3 grey angles

5 black clips
6 blue spacers

Step 2: Build Trigger

This is a simple step. The picture should explain fully.

Step 3: Build Barrel

This is the longest step. The main body of the gun is also the barrel. The series of pictures should explain fully again.

Step 4: Add Rubber Band Handles

Add pegs for the rubber band and attach the rubber band

Step 5: Add Front Handle

The handle is made of three yellow rods.

Step 6: Loading and Firing

This is a bit complicated and may seem very much like an 1800s style gun, but you'll get the hang of it. First you push a yellow rod into the barrel. The you use the blue rod on the trigger to push it out of the back of the gun. Grab the yellow rod and reattach the blue rod to the trigger. Pull the yellow rod back and make sure the trigger locks. Pull the blue rod on the trigger to fire. The pictures may give more detail.

Step 7: Finished!

I hope you have some fun with this. I haven't yet tried a sharpened point on the ammo. I think it may be more liable to misfire. Leave a comment if you try; I'd love to see how it turns out. Also, try to see how powerful this thing can get. I just got some new rubber bands today, so I'll be trying too.



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    PLEASE! If you happen to find that a few K'nex pieces and rubber bands can be used to fire a small projectile a few feet, DONT post it! Make a real, ORIGINAL gun, and use more pieces than can fit in my hand when disassembled. AT LEAST use a real trigger (block triggers are absolutely useless and just clog the site).

    Sorry for this short rant, I get pissed off when people do this, even for their first try. As a rule of thumb, try keeping all 'simple' guns at least as complex as... lets say... these:

    once again awsome! i also added a mod. u know that little black piece sticking out the side. well i put a tree point conecter there with a white rod attached. then i put a two point angled conecter on the trigger and tied an elastic to both of them. now it locks the rod in automaticly:)

    That is really smart. I will definitely try that out.

    sharpened rods make no difference; in fact, they go a little bit farther and a lot faster. and they are slightly less accurate, except at point blank range, where you should NOT fire at anything that lives.

    You said the sharpened rods make no difference, and in the same sentence you said they go farther and fly a lot faster. That doesn't make any sense.

    I really like this gun.

    Looks OK but,dude, look around the site before posting
    Okay look at this and think if your next gun is worth posting

    you don't have to brag about your huge sniper

    excuse me, my sniper? thats not my sniper