Hack124x768's Pump Action Rifle (Step by Step)

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Introduction: Hack124x768's Pump Action Rifle (Step by Step)

About: I like to play my DS, make knex guns, play PS2, hang out w/ friends, watch TV, jump on the trampoline, and surf the web.

Hi. I made Hack124x768's pump action rifle and liked it a lot, but a lot of people (including me), couldn't figure out this gun, so I made this instructable which includes everything. Hope this helps. Here is the original instructable. Please comment and don't forget to rate!

Step 1: Piece List

Connectors
Red-21
White-24
Yellow-30
Gray-60
Light gray-3
Green-40
Orange-32
Rods:
Red-3
Tan-1
Green-98
White-63
Blue-20
Yellow-14
Gray-5
Other:
Blue Hinge Half-1
Black Hinge Half-1
Blue spacers-7
Tan clips-7
Small rubberband-1
Normal rubberband-1
Large rubberband-1

*Numbers subject to counting errors

Step 2: Hopper

This is the hopper.

1. Make this
2. And this
3. 2 of these
4. Connect
5. Connect
6. Add these

Step 3: Trigger

Make the trigger.

1. Make this
2. 2 of these
3. 2 of these
4. Add blue rods and orange connectors on ONE of them
5. Add a piece from picture 2
6. Insert piece from picture 1
7. Other piece from picture 2
8. Other piece from picture 3

Step 4: Pump

This is the pump.

1. Make 8
2. Put all on red rods
3. Slide one down and add extras
4. Add a white connector and gray connectors
5. Make this
6. Add a gray rod and gray connectors
7. Slide on piece from picture 5
8. Add gray rods

Step 5: Firing Pins, Rubberbands, Connecting, and Frame

Refer to title

1. Add pump
2. Make this
3. Insert and add rubberband
4. Add tan rod and gray connector
5. Add orange connector and yellow rod
6. Add a rubberband (I doubled mine)
7. Make and add the front frame
8. Make this
9. Add to trigger
10. Add front frame and new pieces
11. Connect...
12. Add the other pieces
13. Add rubberband to pump

Step 6: Loading and Firing

How to load and fire:

Pull back pump. Block will fall and stop firing pin. Open the "door" on the hopper and load 10 blue rods. Pull trigger. Pull back pump. Block will fall and stop firing pin. Pull trigger. Pull back pump. Block will fall and stop firing pin. Pull trigger. Pull back pump. Block will fall and stop firing pin. Pull trigger. Pull back pump. Block will fall and stop firing pin. Pull trigger. Pull back pump. Block will fall and stop firing pin. Pull trigger. Pull back pump. Block will fall and stop firing pin. Pull trigger. Pull back pump. Block will fall and stop firing pin. Pull trigger. Pull back pump. Block will fall and stop firing pin. Pull trigger. Pull back pump. Block will fall and stop firing pin. Pull trigger. (Aren't I annoying?)

Have fun!!!

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    209 Comments

    Awesome gun! But in my opinion there needs to be a different ammo mag than a hopper. My ammo always falls out if I'm not careful. Other than that it's an overall great gun!

    Don't build this, ive built it before and it doesn't even compare to other guns!

    ya i can make it now the origanle auther pissed round to much

    when the gray rods are added (pic 7) if they r on the 8th connector does it efect the gun

    how do u connect the red connectors

    You must have built it wrong. Please don't capitalize your comments because it shows an agressive and un-nice tone.

    2 replies

    Look. First of all, I'm entitled to an opinion. Second, it's not flagged. Third, I think about three or four times building it is enough to prove that this gun is a fail and people who do get it to work apparently have to put it through some changes. I rest my case there.

    Your still a noob amd obviously have not built it right 4 times proving your a nooby builder. Noob.

     Ooooooohhh maaaaan! I remember making this gun a year or so back by use of his pictures... probably best gun I ever made from K'nex (That was had a mag)

     How well does it shoot?

     I'm going to save you the hassle and tell you right now- the last step is impossible to build.  Instructions are terrible.  Just move on to another gun.  Do NOT build this gun.  

    I think you should revise your instructions because they either are blurry, out of order, impossible to tell what to do, or just plain wrong.  This looks like a good gun, I just wish you would take some time to make this better.

    what if i dont have hinges will it work???????????????????????

    If you put a rubber around the firing pin it souldnt break.
    the man that made it has a website with it on and he called it pum action p90 shotgun  lol
    here is the link====http://knexinstructions.weebly.com/pump-action-p90.html
    you can get a 2 barrel shotgun that holds 14 bullets and claim to fire atleast 16 metres 
    here is the link====http://knexinnovation.net/forums/viewtopic.php?f=49&t=149

     its cool but at most mine got 20 feet and even with balanced rubber bands the firing pin kept breaking it works but i just cant get the range maybe my pieces are weak