Semi-automatic 7 Shot Knex Rifle

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Introduction: Semi-automatic 7 Shot Knex Rifle

About: Some kid that likes creating things or viewing them to see the science behind them.

A semi-automatic knex rifle with 7shot bottom loading magazine that has a very powerful shot, but a long loading time.

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Step 1: Make the Barrel

Pretty simple. Look at the picture.

Step 2: Make the Stock

Also simple. Look at pictures

Step 3: Make the Trigger and Firing Device

Step 4: Make the Magazine

1)Make this
2)Make this
3)Add this to step 1
4)Then add this to steps 1+3
5)Like this
6-8)Add step 2 to steps 1,3,4 so that the yellow is pointing away from step 4.
9)Add blue supports
10)Then add the bullet support system
11)Finished

Step 5: Make the Connector

Simple. Just make this.(the red is held by a green attached to it.)

Step 6: Connect

Connect 4 to 5 1 to 4 5 to 3 3 to 2
To get this

Step 7: Loading

1)Take these greens off
2)Take of these 3 rods
3)Got 7 heavy rubber bands and 2 weaker ones?
4)Take one of those heavy rubber bands and stretch it from the wheel to the front of the gun then rotate the wheel backwards until it clicks
4a)Repeat 6 more times then make sure the rubber bands are inside between the white connectors
5)Add the blue rods back
6)load the bullets so the orange is toward the back on the gun load between 2-3 bullets per time until you get 7 into the magazine.
7)Add the mag (spring) and yellow rods back
8-9)Add those 2 weaker rubber bands to the spring
10)It should look like this, but with 6 more rubber bands
11)Your ready to fire, have fun but don't shoot your eye out

Step 8: Credits

Thanks Beddbug2 for the first rbg that shoot bullets
https://www.instructables.com/id/semi-automatic-knex-pistol/

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    213 Discussions

    0
    14r31337
    14r31337

    9 years ago on Introduction

    I see all those comments on it doesn't shoot, and I'm wondering whether it does or not.

    0
    Ukiarue
    Ukiarue

    9 years ago on Introduction

    i built this a while back, loaded... 8 shots lol, and shot it, fired full auto cause the trigger couldnt catch the ratchet thing. its a decent gun being a semi auto slingshot rifle...

    0
    lioneatr
    lioneatr

    11 years ago on Step 1

    is this 3 thick???

    0
    wats-a-username
    wats-a-username

    Reply 9 years ago on Step 1

    no its 12 soz tok me a second to see it 2 ur right its 3

    0
    _kira_
    _kira_

    10 years ago on Introduction

    holy fudge i just loaded the rubberbands and pressed triger then the thing xploded in my eye!

    0
    knexaddicted
    knexaddicted

    Reply 10 years ago on Introduction

    lol that med me laugh as i was scanning thru comments and i red urs and u med me laugh sos for laughin at ur pain.... r u ok?

    0
    ~Aeronous~
    ~Aeronous~

    Reply 10 years ago on Introduction

    nERD>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>:P

    0
    Raikou-san
    Raikou-san

    10 years ago on Introduction

    Seeing all the comments about how it explodes makes me want to make it just to see it explode. :D

    0
    cerj
    cerj

    Reply 10 years ago on Introduction

     it's kinda like being poked in the eye with a sharp stick.

    it's kinda funny but hurts like hell.

    0
    cerj
    cerj

    10 years ago on Introduction

    ouch -.- the snowflake that holds the bands just exploded. it's a self destructing k'nex gun!

    0
    An Villain
    An Villain

    Reply 10 years ago on Introduction

    i know the feeling, i once fired the entire snowflake with the white rods on, RAZOR RIFLE!!!!!!!!!!!!!!!!

    0
    An Villain
    An Villain

    Reply 10 years ago on Introduction

    i know, same thing happened with bunduk's semi auto RBG pistol, except i launched the Mechanism, barrel, trigger, and supports. all i had left was the handle.

    0
    psharpep
    psharpep

    Reply 10 years ago on Introduction

    Haha it's the bullet that shoots guns!

    0
    NYPA
    NYPA

    Reply 10 years ago on Introduction

    I bet you were like WTF?