(UPDATE!) Knex Sig Sauer P229

About: Knex builder here at Instructables. I build Guns, and, Roller Coaster. I currently build about 2-3 guns a month. I strive to post quality as well as quantity. If you have any ideas for a gun for me to try ou...

Hello I'm back and bringing you my first (attempted) model of the sig sauer p229. Please tell me if you think there is another pistol that this looks more like.

35-40 foot range
8 round mag
Quick reload
Look fairly realistic
True trigger
Comfortable handle

The barrel is a bit fat

Drop a comment telling me what you think and please hit that favorite button it takes 2 seconds.

Step 1: Update! Internals

I added internals your welcome!
I also changed the trigger guard and the trigger its self hope you like the changes and I also increased the range by 5 feet
Feel free to use the design just give me credit

Step 2: Update 2

I have updated my sig once again I have reinforced the back, barrel, and trigger to hold more pressure and impact. I also changed my mag to look better and added a mag lock which you can see on the handle (its the metallic connector)
I also changed the ammo which now shoots 50-55 feet and shoots more powerfully rather than a slow moving arching bullet



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    15 Discussions


    Sorry man I've already took it apart if you like this then you will probly like my knex KLRBP I might post instructions to it in the future but thanks anyway


    4 years ago on Introduction

    Great gun man but I can't get pass the ammo. I just would prefer to shoot something larger.
    Other than that you modeled the gun great!

    2 replies

    Thanks I am not a real big fan of the ammo either but that was the only thing that worked with this gun and did not jam

    Sounds about right... the ammo is probably too small to jam. XD
    Those handle fed pistols are a pain to pull off anyway so good job!


    You did an alright job, as replicating pistols with k'nex is very hard.
    The angled barrel end is a bit weird, as the real gun seems to have a flat end. And the handle looks a bit too long, but that could just be me, though.

    1 reply

    Well I was not intending to make a model at first the gun was all ready built and I was fixing to post but I was looking at pistols and I thought hey that looks like my new gun so I said hey let's all all it the sig sauer p229 so it is not really a replica