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Old 03-31-2007, 12:34 AM   #1 (permalink)
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KP3 Questions.

I don't think my 12 grams are piercing properly. The 12grams look like they been pierced by a small needle. I compared it to one that was punctured by a Zeus pistol, and the whole was a lot bigger. Is this normal?
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Old 03-31-2007, 12:42 AM   #2 (permalink)
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yes it's normal.

main spring tension and valve spring tension all take roll in how big of a hole is poked in the 12 gram.

if you crank in the RVA (provided that it has one) and you will see a bigger hole. back it out and you'll see a smaller hole.
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Old 03-31-2007, 05:51 AM   #3 (permalink)
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I think mine has one. Its on the lower tube, directly under the back of the bolt, near the safety switch.
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Old 03-31-2007, 12:23 PM   #4 (permalink)
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does it take an allen wrench?

if so, sounds like one to me.
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Old 04-01-2007, 12:17 PM   #5 (permalink)
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I backed the screw out, I believe it increased the velocity as it shot further. Unless it was the wind. However, at chrono It would only go up to around 190-210.
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Old 04-01-2007, 01:43 PM   #6 (permalink)
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backing it out should decrease the velocity.

does your kp3 have a rocker style safety?
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Old 04-01-2007, 05:36 PM   #7 (permalink)
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Im not sure, but heres a picture. Is there another way to increase the velocity?

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Old 04-01-2007, 05:54 PM   #8 (permalink)
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that's a late model style. push/pull safety.

you may want to pull the bolt on that gun and see if it has a velocity adjuster in it. some Speed Demon bolts have a set screw in the end of it that can be adjusted to block the amount of air that flows through the bolt.

pull the bolt out of the gun and look in the end of it. if there is a set screw, turn it clockwise all the way. then put it back together and try that. then you can use your external adjuster shown in your pic.
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Old 04-01-2007, 06:12 PM   #9 (permalink)
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I didn't see one, but I snapped a 2 pictures of the bolt, just incase. Would you reccomend a new spring? or is it possible to shim the spring?



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Old 04-01-2007, 07:00 PM   #10 (permalink)
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take a picture of the hole that the co2 flows through.


it probably needs new springs if your trying to run it off of 12 grams.

if the gun was tuned to be shooting at a safe velocity on CA, and then you switch to 12 grams, your velocity is going to be lower.
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