Knex Semi Auto Rubberband Gun

2,877

8

30

Published

Introduction: Knex Semi Auto Rubberband Gun

Here is it!!! My new semi automatic knex rubberband gun!!
Pros:
Very sturdy
Comfortable stock ( can be a con if your shoulder is way to big :D)
Accurate
Holds up to 20 rubberbands

Cons:
The stock can be a con as i said
No scope

Special credits to paperninja for his mechanism

Step 1: Part List

Part list:

Connectors:
yellow:40
orange:45
Dark grey:6
Light grey:5
Red:6
Green:6

Rods:
Green:150
White:44
Red:6
Blue:23
Bendy yellow/orange:3 ( You can use normal insted but this is way more comforatble

Misc:
Tan connector:1
Blue tan connector without nob:4
Y connector: 7

Other:
Rubberbands: Minimal 2 for the trigger

Thats a total of only 348 pieces!




Step 2: The Stock

Instructions

Step 3: Front Barrel

Instructions

Step 4: Handle

Instructions

Step 5: Semi Auto Mechanism

Instructions

Step 6: Removable Loading Part

Instructions

Step 7: Part to Make It Sturdier

Instructions

Step 8: Put It All Together

Instructions

Step 9: Loading

Instructions

Share

    Recommendations

    • Make it Move Contest

      Make it Move Contest
    • Clocks Contest

      Clocks Contest
    • Casting Contest

      Casting Contest
    user

    We have a be nice policy.
    Please be positive and constructive.

    Tips

    Questions

    30 Comments

    i cant get it to shoot!!!!!!!!!!!!!!!!!!!!!!!!!

    it looks really good but ive run out of snowflakes and green rods AAAAAAAAQAQGH!!!!! ive been trying to make a semi auto rubberband gun for ages... thanks!!!

    no scope makes no difference 2 me but it would be easy 2 put one on if u wanted 1. 4 a rubberband gun, this is brilliant!!! i give it a worthy 3.5*'s

    how far does it shoot

    Cool! i used this mech on a duel mounted tabletop rbg.. its still in its development stages but it works fine but just doesent look pretty. when i get it working perfect i'll make it look better.

    its realy ok if it doesnt got a scope

    how much rubberbands does it holds? and if i pull the trigger 1 time, does it shoot 1 rubberband then?

    if i try to fire,it fires only one elastic or 2-3 at a time?

    2 replies

    Hm, you must have done something wrong with the mechanism part. It should fire just 1 rubberband. You might check out the cog wheel, if you press the trigger, how many times it goes forward? It should be just one. If not, I suggest building that part again. Still doesn't work? PM me and i should help you more.

    works well now,thanks. i'll try to make an m21,with removable mag

    it is already posted, this is the instructable

    5*s, because it looks good, and the trigger mechanism is very cool. but there is 1 thing i need to say:in the pc's list stands:tan connectors:"1" in the trigger mech are 6 of them... but its very nice

    post what

    happy new year!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

    user

    Some of the pictures are blurry/hard to see, But I like the look of gun:)

    2 replies

    what pics then

    user

    intro pic..