Introduction: Spider Massacre

Picture of Spider Massacre

heey guys
this is my first instructable - have fun. I DON'T CARE WHAT YOU DO WITH IT, BUT I'M IN NO WAY RESPONSIBLE FOR WHATEVER YOU DO WITH THIS GUN - just that you know. i originally made this gun for my little sister. she is very frightened by spiders and i built this gun for her so that she could get rid of the spiders without coming close. even for my little sister this gun is very easy to operate. just pull back the firing pin load ammo and fire. i designed it to fire green rods but the gun didn't work well, so i had to modify it. after modifying the green rods were the only rods that weren't shot properly by this gun. don't load green rods in the gun because it'll jam or the bullet will get stuck and when you fire, the force of the firing pin will break down parts of the gun. have fun.

plz rate it and post comments

also check out my new and upgraded Spider Massacre

Step 1: The Barrel

Picture of The Barrel

this gun has a quite short barrel in comparison to other guns. i did this on purpose because a longer barrel means more friction. the more friction, the more the range and the power of your gun will be reduced. however, a longer barrel does give more accuracy to the bullet so my gun has a bit less accuracy than most guns. it still is quite powerful.

Step 2: The Scope / Sight

Picture of The Scope / Sight

i just made a very simple, small scope (or sight whatever you want to call it). it's just something to aim with. if you don't like how it looks, or you've got a better scope yourself, or you need to put anything else on top of the gun - don't worry, the scope is detachable. if you don't want the scope, just skip this step.

Step 3: The Body of the Gun.

Picture of The Body of the Gun.

this is the body of the gun. the barrel + sight, handle, trigger, firing pin will be conected to this.

the small black connector on the bottom of the pictures is a part of some k'nex chain. the left one is the original one and the right one is the modified one. (you need the modified one). you can get it by jumping on it.

Step 4: The Trigger and Firing Pin

Picture of The Trigger and Firing Pin

this is no trigger you've seen in most k'nex guns so far, but a trigger like in real guns and rifles. when you push it back to far it will disconnect - just put it back. when you have any problems with doing this ill explain it to you guys later.

firing pin is just the firing pin

Step 5: Assembling What You've Made So Far

Picture of Assembling What You've Made So Far

just put together the parts like on the pictures. should be

Step 6: The Handle

Picture of The Handle

this is the handle. it's where you hold the gun.

uhmm..........yeah well, what else can i tell about it?

Step 7: The Body of the Gun (part II) + Assembling the Handle

Picture of The Body of the Gun (part II) + Assembling the Handle

this is the backside of the gun. it connects the handle with the gun and gives extra strength.

now assemble this thing plus the handle as shown in the pictures

Step 8: Adding Firing Pin and Rubberbands

Picture of Adding Firing Pin and Rubberbands

just put tin the firing pin and then add the rubberband(s) like on the pictures. make sure the barrel is free and the trigger is open before you put the firing pin in.

don't put too many rubberbands on it because the gun isn't made for huge forces and impacts. like 1-3 is enough. just decide for yourself.

Step 9: YAY...firing the Gun

Picture of YAY...firing the Gun

just pull back the firing pin until you hear a *click* of the trigger blocking the firing pin. load ammo and shoot.

i'm currently working on the Spider Massacre Sniper Rifle. i tried to make a shotgun version, but, i messed up that project completely. if any of you guys could make a shotgun version of this gun - post it.

see ya


Lowney (author)2009-11-07

 Have you ever managed to kill a spider with this? How big are they if you feel a gun is necessary? (BTW the gun is nice, more so for the v2)

smattman22 (author)2009-07-31

lookup 8 shot revolver someones knex gun has an awsome trigger like this one!

FrozenFire 99 (author)2009-01-12


Stavroz (author)2008-09-02

Thanks O Lord DarthVader jeez whats next? -Clone attack? -Revenge of the droids?

knextard (author)Stavroz2008-09-05


toastersrule123 (author)2008-07-16

i made ure gun its awesome! i added a white round circle thingy on the back of the plunger for more strength.also, i added an elastic band round the trigger and the green piece so it dosnt come apart

Stavroz (author)2008-07-02

Cool gun i made it, i added a front grip and a longer barrel.

szechuan53 (author)2008-06-29

i like it. and you're right, this isn't like most knex guns.

rocksalt2342 (author)2008-05-27

well, once you kill all the spiders, prepare for a bug massacre. cause, you know, spiders eat bugs.

yeah, i guess you're right. i'll start on my bug massacre right away!

guy-man (author)2008-04-04

do yoo hav too break the pees

FrozenFire 99 (author)guy-man2008-04-06

you mean in step 3?

I_am_Canadian (author)2008-03-24

man this thing rox my sox

What does it shoot? any mag?

it shoots anything that fits in the barrel and it doenst have a mag...sry

wow! i made this gun. its the BEST! I made a few big upgrades. i will post a picture soon. NICE GUN

ty man im putting my new upgraded version of this gun on the site so be sure to have a look

ok ill be sure to have a look

that thing is awesome!

knex guns r da best (author)2007-12-18

To make the handle get a better fix in the gun try putting a blue bar on both of the green parts holding the handle to the gun. But it is a great knex gun.

ty but can you explain it with a picture? i dont get it

where all the green connectore are put a blue bar connecting them.

jeansl10 (author)2008-02-03

I made mod for it: a stock and a better scope should i post it?

FrozenFire 99 (author)jeansl102008-02-08


jeansl10 (author)FrozenFire 992008-02-10

il probably post it in the next few days

FrozenFire 99 (author)jeansl102008-02-12

how are you gonna call it?

plasmaspy (author)2008-01-30

very nice looking gun i think il make this. also lookin forward to the sniper

koolkidd (author)2008-01-20


jeansl10 (author)2007-12-24

this gun is sooo awesome and the trigger is really good

Shut Up Now (author)2007-12-12

once i buy a big tub of knex im gonna totaly make this! right now i dont have enough peices. ( i only have on lunar lander set)

This doesn't take that many pieces, really! By the way, what's a lunar lander set? The only sets i buy are the 400 piece sets... Never herd of Lunar Lander...

oh its a building set to make a model of the Apollo 11. nice gun btw. i can tell its a nice design just by lookin at it. oh and could u build this off of the pieces of a 400 piece tub

cc121861 (author)2007-12-04


FrozenFire 99 (author)cc1218612007-12-13

lol ty

toulvus (author)2007-12-08

to make the piece easier just close a door on it

FrozenFire 99 (author)toulvus2007-12-13


mrbox (author)2007-12-12

Interesting gun.. i like it =D

Abominatus (author)2007-12-02

can u make it without damaging any pieces?

FrozenFire 99 (author)Abominatus2007-12-03

sure. just don't put too many rubber bands on it

anner 2k7 (author)2007-11-30

is this thing semi auto

bunduk (author)2007-11-21

you should give the gun a magazine like this:

then it would be great


FrozenFire 99 (author)bunduk2007-11-21

i know but then i actually should have a magazine like perfect duck's red impact. it uses a kind of hopper that uses minimal friction. see for yourself

bunduk (author)FrozenFire 992007-11-22

yeah i agree

Darth Trainman (author)2007-11-20

Yay, a GOOD block trigger.

the trigger moves downwards as youfire so you can even put something over it if you want

it still BLOCKS the ram :P

Ah yes. Not even a block trigger! This be a good gun!

bunduk (author)2007-11-20

i agree with faust a good gun to show off with +1rating for you mateey bunduk

FrozenFire 99 (author)bunduk2007-11-21

YAY tnx

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