Introduction: The Basic Shot Weapon (BSW) + Mods

First of all I would like to thank TheDunkis for this idea. 

Basically, this gun uses a firing pin that is like a charging handle and the elastics are attached to the front. This means more realism. The yellow connector on the front of the pin also means that the pin can fire multiple rounds, not too far off one of Oblivitus' ideas for a mag-fed shotgun. 

Anyway, this is a great fun-gun, and is very satisfying to fire. I hope to make it war-worthy with mods, possibly make an underslung variant and a pump-action mech. It also kinda looks like a Covenant Plasma Weapon from the Halo Series. 

It is design for close-range Power, not blistering range. 

Here are the stats:

Range: 25-30ft from one band, any more and I risk self-destructing the pin
Spread: 4-5ft
Mag Capacity: 9 shots, 3 bullets each slug.
Length: 32cm


>New Firing Pin Mech
>Super Strong top rail
>Comfy Handle
>Internal Mag Pusher
>Plasma weapon like shape
>Shotgun Rounds

Parts Count:

Green    ~140
White     ~47
Blue       ~6
Black     ~1

Red                ~24
Yellow            ~70
Orange          ~45
Green            ~4
Blue               ~2
Dark Grey     ~10
Light Grey     ~6
Tan                ~14
Metallic Tan ~4

Y Clips              ~19
Grey Gears      ~2
Black Wheels  ~4
Female Socket ~5
Blue Spacer      ~4

Extra Y Clips  ~8

Grey Clips ~At Least 3
White Rods  ~At Least 3

Here is version 1 in action

Step 1: Main Body

Pretty Simple. Note the special joining technique on Picture 4.

Step 2: Top Rail

This top rail is super-strong, so follow carefully. 

Step 3: Bottom Rail

This has to be done in layers, because the middle layer has a hole for the trigger block.

Step 4: Handle

This handle uses a strange way to connect it to the body- Pay Attention!

Step 5: Trigger


Step 6: Magazine

This is more tricky. The front of the mag will be loose, you will strengthen it later.

Step 7: Foregrip and Handle Guard

The middle layer is different- Pay Attention!

Step 8: Top Layer

The final layer, YAY! It is exactly the same as the bottom, just without the white/blue rods.

Step 9: Strengthening/ Extra Bits

These are crucial in order to keep the gun strong. 

Step 10: Banding/Loading

Look at how the pin is made, follow it exactly.
Use a small band on the mag.
Use a stretchy band on the pin.
Pull back the grey gears, and pull the trigger to fire (duh).

Step 11: Optional Stuff

These Y clips are optional, you don't need them, they just make the gun look better and smooth design up.

Step 12: Finito!!

Go have fun!

Step 13: Mods

I will post any of my mods and your mods here, just leave a picture in the comment box below.

Don't forget to comment any improvements/suggestions, I can take criticism.
*Subscribe if you like*

Picture 1: The New ammo! (Courtesy of KGB).
Picture 2: How it is loaded.
Picture 3: New trigger, strong and can take more bands.
Picture 4: New rear end, with sight-mount and better looks.
Picture 5: Pump-action progress/idea
Picture 6: Pump Idea. 
Picture 7: Foresight and band holder.

New ammo and mag pictures 8-15 by Knexgeek!

Requires modded parts, but means easy reload!


knexboy586 made it! (author)2013-02-02

you forgot the white connectors

Darkfighter101 made it! (author)2012-12-31

There is only one word to describe this gun BADASS!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

CuddlesMcT made it! (author)2012-06-29

the barrel is too tight for the bullets. other than that particular spot, i found no problems and works like a charm :)

the_boss_builder made it! (author)2012-04-02

looks pretty dang cool !!!!

Andrew5909 made it! (author)2012-03-22

i love this, mainly because it looks like a plasma cutter from dead space

TigerNod made it! (author)2011-12-04

I built it today. I love it. I used it not in a war yet and I have no trigger time behind it, but I can tell you what I think about it.

Beutifull gun, sweet firepower. It shoots very far (1 64' RB) for a shotgun. Feeding does not always go perfect. But it is better than some other shotguns. Love the looks and feel, but handle is a bit short. A pump would make it even better but I think it is not nessecary. The problems other people talk about are there but there are always problems on guns and on shotguns even more. I like it, keep up the good work.

TheFoofinator made it! (author)TheFoofinator2011-12-04

Thanks. I got real lazy at the moment so I might have a redo at this, and take on the suggestions of others.

TigerNod made it! (author)TigerNod2011-12-05

I have a suggestion. That gears on the side keep falling off, because of the bands. That is maybe a problem.

TheFoofinator made it! (author)TheFoofinator2011-12-05

I know, it is a problem. I hope to get rid of the firing pin altogether and replace it with a rail. Stronger and it won't nee those gear. I have had an idea in my head that may work.

TigerNod made it! (author)TigerNod2011-12-09

I wish you good luck then. ;-)

TheFoofinator made it! (author)TheFoofinator2011-12-11

I have made it, now it can take 4 bands, but as soon as one thing breaks, I fix the issue, then another part needs reinforcing, so it won't be up this week. I have literally had to gut it and rid of virtually all of the rail area, only the trigger remains off this one.

TigerNod made it! (author)TigerNod2011-12-15

You are working hard on it, are you?

TheFoofinator made it! (author)TheFoofinator2011-12-15

Yes, when I have time this week. The main problem is the fact that all the impact of the pin is on the 2 red connectors, meaning that the rail at the front has to made like a rock. I've tried using yellow and a white rod on each side to reinforce it, but the pin then doesn't let the ammo load right. I may have to completely redo the front end : /

TigerNod made it! (author)TigerNod2012-01-02

If that is needed to make it work as good as you can, go for it.

Happy new year! ;-)

dr. richtofen made it! (author)2011-10-11

on his skorpion i mean

dr. richtofen made it! (author)2011-10-11

use a blue rod like seleziona did

mulletman6 made it! (author)2011-10-06

Made this, thought it was really good, but it didn't really shoot very well :/

JJ8090 made it! (author)2011-09-25

Well done for posting it and BTW its EPIC

Johnhall44 made it! (author)2011-09-16

Another idea is that you cut paper caps into squares and glue them onto the back of the ammo so when you shoot it sets of the caps.i used this on a knex dragonov that shot yellow rods

Johnhall44 made it! (author)2011-09-16

tie a short piece of string between the shots to limit the spread and make bola rounds

tubanator-2.0 made it! (author)2011-08-17

I made this but since i didn't want a shotgun type weapon i made it single shot and i think my ram/bolt is different i opted out of gears for just rods. and my handle like moved up alot? maybe just me but i changed that and i have to say it shoots pretty good with 2 bands but the row of oranges like pops out alot on mine? any idea what it is?

knexinglemon made it! (author)2011-07-09

when you pull back the grey gear does the firing pin stick out??

TheFoofinator made it! (author)TheFoofinator2011-07-11

The back? Yes it does. You could make the back end longer so it doesn't but it then looks silly

apples!!!!! made it! (author)2011-07-09

This is neat. I like its overall look, too.

james4 made it! (author)2011-05-06

this gun + stock = epic knex shawt gun

TheFoofinator made it! (author)TheFoofinator2011-05-07

Thanks man. Could you make a stock? I don't have enough yellow connectors to make one... Also this is designed so it is modifiable hence 'Basic' shot weapon.

jamesdude made it! (author)jamesdude2011-07-04

I would but I probably don't even have enough pieces to make the gun itself. Lol.

knexman2001 made it! (author)knexman20012011-05-14

When I get to make this I'll make a stock.

james4 made it! (author)james42011-05-08

i could make a stock but i dont have a camera tht has usb connection D:

spricer988 made it! (author)2011-05-29

if you add a few mods and a stalk... you got a vector kriss.

MegaMetal8 made it! (author)2011-05-18

Woo done

TheFoofinator made it! (author)2011-05-17

Use 1. It may seem underpowered, but this mechanism can't take much bands, unless you super glue the grey gears and green pins on. I can't really help it though, I didn't design the mech. I only used 1 band in the video, so you should see what kind of range its getting (not much) It's a shotgun it doesn't matter.

beanieostrich made it! (author)beanieostrich2011-05-17

Use epoxy or just somehow fuse the trigger pieces together XD

MegaMetal8 made it! (author)2011-05-17

Building, just finished step 5. Ill try and have a picture by Friday.

MegaMetal8 made it! (author)2011-05-15

Considering building, Are all 5 female sockets necessary?

I'Ve got 2

TheFoofinator made it! (author)TheFoofinator2011-05-15

The ones at the front may be necessary (this is the bit that takes the impact), but the rest can be replaced with greys, perhaps a little tape on the back to make sure the rails are secure.

MegaMetal8 made it! (author)MegaMetal82011-05-15

Ok Thanks

TheFoofinator made it! (author)TheFoofinator2011-05-16

Actually, you don't even need the front ones, seeing as they are held by the mag pusher's elastics.

MegaMetal8 made it! (author)MegaMetal82011-05-17

Ok may build soon.

TheFoofinator made it! (author)2011-05-16

What was wrong? How many elastics?

Raz1r Knex Bull3t made it! (author)2011-05-08

Hey, I built the gun and made an easier loading mech, do you want me to post pics of it?

TheFoofinator made it! (author)TheFoofinator2011-05-08

Yes please I'll add them into the ible.

Raz1r Knex Bull3t made it! (author)Raz1r Knex Bull3t2011-05-08

Here they are, but note the broken yellow connector on the mag instead of the orange, and make sure you switch out those yellow connectors at the bottom of the thing that flips out with red connectors. Also note the three tan connectors with the broken white rod in them connected to the two red connectors at the bottom at the mag, also string a rubber band through where shown. Also the orange connector with the green rod on it is the new ammo for the gun I made.

P.S. If you want to flip the thing out to load it you have to pull out the top white/black rod to flip it out and reverse it to lock the thing in place.

Knex Shotgun pic 1.jpgKnex Shotgun pic 2.jpgKnex Shotgun pic 3.jpgKnex Shotgun pic 4.jpgKnex Shotgun pic 5.jpgKnex Shotgun pic 6.jpgKnex Shotgun pic 7.jpgKnex Shotgun pic 8.jpg
TheFoofinator made it! (author)TheFoofinator2011-05-08

I'll add the pics. What are the tan connectors for at the bottom?

Raz1r Knex Bull3t made it! (author)Raz1r Knex Bull3t2011-05-08

It keeps the red connectors separated from moving around to much. Plus it acts like a lock for the thing that flips out.

Raz1r Knex Bull3t made it! (author)Raz1r Knex Bull3t2011-05-08

I'll get started on the pics right now. My mod uses two broken pieces that are needed though if you don't mind. The rest just strengthen the part for me.

Fred the evil puppet made it! (author)2011-05-08

I love the breech loading mech.

The Jamalam made it! (author)2011-05-04

This looks beastly! Epic win :D

Seleziona made it! (author)2011-05-03

Looks really great. This just looks really good! High five!

TheFoofinator made it! (author)TheFoofinator2011-05-03

Thanks man! Means a lot!

About This Instructable




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