K'nex Mag

About: A mechanical engineering major just looking to have some fun with K'Nex.

This is a K'nex magazine I designed based on the original blue rod mag. Basically I extended its length and added a bar that allows you to keep the pin down. Unfortunately even with the extended length the mag only holds 15 blue bars and only 14 rounds can be shot. This was just something I was working on and I hope by posting it you guys can modify it to hold more rounds. ENOUGH TALKING! Here's the parts list.

Step 1: Parts List


12 white connecters

1 blue connecter

5 yellow connecters

1 purple/gray connecters(the ones that attach to the blues)

7 orange connecters

2 purple/gray connecters(the ones with a single opening)


28 green rods

14 white rods

1 blue rod(plus 15 more for ammunition)

1 red rod


1 ball joint(with the ball on the end)

1 ball joint(with an opening at the end)

1 black clip

2 rubber bands(I used 144s but it doesn't really matter)

Step 2: The Sides

Step 3: the Pin

Step 4: Assembly



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    4 Discussions


    4 years ago on Introduction

    Hmm, nice mag. But wouldn't you have to cut the top two rods to actually fit it in a gun? It wouldn't actually go in a gun with those two black caps on I guess.

    I haven't made a specific gun for it but if you have a gun that was designed for this mag, which is a popular mag, you could use this mag in its place.