SCAST V1.4 (K'nex AST Rifle)





Introduction: SCAST V1.4 (K'nex AST Rifle)

Here are the instructions for my AST Rifle, the SCAST.

-Shoots blue rods
-Uses removable mags
-Flip up front sight
-True trigger
-Very sturdy

Step 1: Stock

1: Make 3
2: Add white rods
3: Add other two layers
4-5: Make
6: Get 5 blue rods
7-8: Attach to other part

Step 2: Body (Part 1)

1: Make
2-3: Add white rods
4: Make
5: Add
6-7: Make
8: Add
9: Add
10: Add
11: Add
12: Add
13: Make
14: Connect
15: Rubber band

Step 3: Body (Part 2)

1: Make
2: Make
3: Add
4: Add
5: Make
6: Add

Step 4: Body (Connection)

1: Connect
2: Get
3: Add

Step 5: Mag Chamber

1: Make
2: Make
3: Add
4: Make
5: Add
6: Make
7: Add

Step 6: Barrel

1: Make
2: Add white rods
3: Make
4: Add
5: Add
6: Make
7: Connect

Step 7: Pump, Firing Pin, and Sight

1-2: Make
3: Make
4: Add
5: Firing pin
6: Sight parts, make

Step 8: Assembly

1-2: Stock + Body
3-4: Body + Mag Chamber
5-6: Sight
7-11: Pump and firing pin

Step 9: Rubber Bands

1: Rubber Bands
2: Pump
3: Firing Pin

Step 10: Magazine

1: Make
2: Add white rods
3: Make
4: Add
5: Make
6: Connect
7: Make
8: Get
9: Add
10: Add
11: Add
12: What it should look like
13: Tape it up
14: Add blue rods
15: Make mag pusher

Step 11: How to Use

1: Get 10 blue rods
2-3: Load mag
4: Pump firing pin back
5: Insert mag
6:Pull trigger



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    Please be positive and constructive.




     this gun disapointed me big time. this gun is not good at all. the pump sucks and isnt even attached to the gun. the trigger cannot reset itself automatically..... you can only have about 1 rubberband on the firing pin or else the grey connector of the pump will snap off..... very bad.

    4 replies

     I agree.

     haha that made me laugh. the creator agrees... lol

     Well you're right, this gun is pretty bad compared to guns nowadays.  The thing is that this was posted a year ago, so it was quite good for it's time.


    Why's this rated so low? This is a really good gun, one of your best.... Ehh, I have 2 questions before I start building this... 1. Ranges with 2-tied up rubberbands? 2. About how many yellow connectors does this use? (I'm starting to run out of those after building the DD-27, IAC's Duckgun on KI, the Dragonfly AST crossbow, and the Rising Sun...)

    4 replies

    what's the duckgun?

    BAAAAH GO AWAY STOP REPLYING TO ALL MY COMMENTS YOU STALKER anywho duckgun is a single shot pistol that Iac made. It had a trigger system similar to the spider massacre v2, and looked like a duck's head.

    wtf? I don't reply to all your comments. Linky? I may have commented, but it is likely I forgot.

    /overexaggeration You reply to some or most of them, and they weren't directed toward you. Anywho, i think IaC posted a link on his orangeboard. Otherwise, ask him for a pic.

    30-40 inches. nah jk, I mean feet. I really don't know. =P


    are you done joking?

    You shouldn't place your comment bars into other ones. Now it is (I guess) impossible to see what you wrote in the middle one. Just mentioning, nothing personal.

    2 replies

    I did it on purpose :P

    I found a workaround: download the PDF of the instructable!

    The magazine is capped of at the top.