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K9 Kannon

Yes, a K9 Kannon

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#1 Duke Wintermaul

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Posted 18 September 2013 - 08:36 PM

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The K9 Kannon. A 'blaster' that fires tennis balls.

Manufactured by Hyper-Pet, i bought this kannon last weekend at Meijer. I was strolling by the pet isle, looking at fishies, when this lone kannon caught my eye on the clearance shelf. At $9.99, 60% off the retail $24.99, how could I say no? I ripped the package open in the lobby, after paying of course, and couldn't wait to try it out. In the parking lot i was getting roughly 35feet flat, a little dissapointing but not unexpected; hell I was firing a tennis ball. Quickly learning the priming and firing mechanism for the kannon, I originally thought modification potential was minimal.

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So, internally this kannon is fairly simple. I've avoid calling this a blaster, as it doesn't use conventional plunger tubes or air power. It is as best as I can describe, an 'impact' blaster. The black priming rod is connected to each shell side via a 5 1/3 ft rubber band. This band is not pictured, all of these pictures are post-modification.

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The trigger is fairly simple. You pull back on the priming handle and the trigger ratchets into holes on the black impact rod.

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When the trigger is pulled, the rod is released and the elastic power of the rubber band slams the impact rod into the tennis ball.

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These black rubber stoppers catch the impact rod after firing.

I did a few modification's to this kannon, so lets run them down.
1. Replaced the 5 1/3ft rubber band with a 4 1/4ft length of surgical tubing from McMaster Carr.
2. The rubber stops are actually a rectangular prism, with a square as the base. The square was originally facing upwards, I rotated the stop 90 degrees to allow for maximum cushioning.
3. Added 3 1/2in of draw to the impact rod. This was accomplished by adding another socket in the front of the impact rod to allow the trigger to catch on, and by placing the end of the surgical tubing in the second hole on the impact rod. The stock rubber band was for some reason resting inside the first hole.

Now, this kannon is launching tennis balls 50-60ft flat. Incredible, if I do say so myself.

This is not a mod guide, as it was a fairly simple modification. I have seen absolutely nothing about the K9 Kannon on the Haven, so i wanted to at least make you guys aware of it's existence. I plan on using mine in DTC, as i hope the balls will be worth at least 5 points.

Since the ammunition is fairly large, the impact from these balls is softer than you would think. I've taken a headshot from it fully modified from about 6feet away. Yeah, it was disorientating and I lost my glasses; but I was fine and my glasses were only slightly bent.

Nerf on or Fuck off.
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#2 PBZ

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Posted 19 September 2013 - 08:09 AM

I've taken a headshot from it fully modified from about 6feet away. Yeah, it was disorientating and I lost my glasses; but I was fine and my glasses were only slightly bent.

Nerf on or Fuck off.

NooFo4Lyf

So its not really any different than taking a good titan missile to the head at close range?
Interesting... kannon? I think this is pretty cool, and for games like DTC it would add another higher point weapon with more accuracy than arrows or missiles.
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#3 T da B

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Posted 19 September 2013 - 02:07 PM

Awesome! Reminds me of a modded golf ball shooter I had to dodge at my last war. It warms the cockles of my heart seeing random blasters made into beasts. Seems like it would be pretty straightforward to make it pump-action as well, depending on the prime. Is it accurate?
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Make it funky.

#4 Duke Wintermaul

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Posted 19 September 2013 - 05:58 PM

Awesome! Reminds me of a modded golf ball shooter I had to dodge at my last war. It warms the cockles of my heart seeing random blasters made into beasts. Seems like it would be pretty straightforward to make it pump-action as well, depending on the prime. Is it accurate?


It's actually really accurate. The ball travels up out of the barrel, I believe because of the curvature and bounciness of said ball. As long as you take that into account it's spot on.

No pump action i'm afraid. The distance from the front of the blaster to the grip is smaller than the prime, so you would be unable to fully prime it to it's max power. I'm fine with it being a pull back, especially because it's a single shot front loader.

Today i bought a bucket of 20 tennis balls and realized that we would have the option of playing Carpe De Testicilum at any war I brought this too. Last war we wanted to do some carpe, but alas we had no balls. This is a great multipurpose blaster.

Also, a golf ball launcher? I would think that beast would be banned. There is a large difference between a hollow soft tennis ball and a hard solid golfball, I shutter to think of close (or even far) hit's with that. I imagine it might break a bone.
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#5 Donquixote

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Posted 19 September 2013 - 06:33 PM

I'm guessing they used foam training balls rather than actual golf balls. Like these.
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#6 T da B

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Posted 19 September 2013 - 07:07 PM

Yeah they were the soft foam rubber practice balls, but they still probably outweigh the typical 1g Stefan. I didn't get a close look at the golf ball launcher, but it was some sort of air tank blaster that literally made a boom sound when it fired! Velocities seemed pretty damn high, especially for an indoor war, so maybe it should have been banned just due to the kinetic energy.

One more idea: you might be able to "hopper" it with just a tube that gravity feeds into the front chamber!
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Make it funky.

#7 Duke Wintermaul

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Posted 19 September 2013 - 10:48 PM

I don't doubt I could hopper it, and I'm sure I could figure out a way to make it pump action as well, but i'm not too invested in turning this into a primary.

Basically, a front loading pull back DTC Kannon works fine for my purposes. I'd love to see a pump action hoppered version of this K9 Kannon, and I implore you to create one.

Perhaps this summer, or winter break even, I might try and do something more. For now, it's going to stay the way it is. I'm sure it will gets it's fair use in DTC rounds.
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#8 SonReeceSonJensen

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Posted 20 September 2013 - 01:56 PM

As a proponent of silliness and DTC I love what you are doing. I saw these at Menards and thought the same thing.

With a 'coupler' of sorts you could possibly fire ballistic balls, small nerf footballs, or really anything you wanted.
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The Difference:
-Guns shoot bullets that kill people
-Blasters shoot darts that tag people

I do not play with guns.

#9 wrnicola

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Posted 03 December 2013 - 10:41 PM

I just purchased one of these bad boys, and after shooting it without any modifications I was sorely disappointed. This is some great information and I plan on immediately doing similar modifications, but I was curious if you had any information, like an item number or guidance,on what specific tubing you purchased from McMaster Carr because their catalog is intense. Thanks again!
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#10 Duke Wintermaul

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Posted 04 December 2013 - 01:02 AM

McMaster #5234K96

I actually have 5ft of this tubing lying around, McMaster sells it in 10ft segments. If you are interested, how does $5 + sh sound?
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#11 wrnicola

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Posted 04 December 2013 - 05:22 PM

McMaster #5234K96

I actually have 5ft of this tubing lying around, McMaster sells it in 10ft segments. If you are interested, how does $5 + sh sound?

Sounds like a plan. Ill shoot you a private message shortly.
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#12 Toxic Turtle

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Posted 15 December 2014 - 03:04 PM

hey duke did you ever think of seeing if Thuraband black would work inside instead of surgical tubing
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