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Post by Shadow (314) on Apr 14, 2014 11:07:11 GMT -5
Ok, so I've recently purchased a Gen1 KJW P229 in a trade. It came with three mags that each hold about 30 rounds. I've noticed that each of the mags will only give me about 5-6 rounds before they're empty, the last round just rolling out the barrel. I've tried both green gas and propane, being careful to take the time and fully fill each mag. After a google and MiA search, I'm not finding much on this exact problem, but some close. Others have found that the OEM fill valves don't have a good flow so most people aren't filling their mags to capacity.
Now, here's where my question lies to you all powerful gurus of internet airsoft people. I've been told that it's common for KJW mags to need a break in period. That fully filling and emptying mags over and over will help alleviate this problem so that I can get all 30 rounds down range.
Have any of you experienced this and, if you were able to solve it, how did you do so?
Any and all help will be appreciated. Please and thank you!
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Post by Gunslinger on Apr 14, 2014 15:33:53 GMT -5
Pop your valves out with the tool from Evike or where ever and silicone spray the o-rings, and reseat the valves. Also if it still does it then you might want to replace the o-rings. Should solve your issues. Good luck.
Im only going off the issues I have had with past gas guns. I have had KWA LM4r's do just that.
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Post by Shadow (314) on Apr 14, 2014 19:10:29 GMT -5
Is the problem a leak? I ask because after days of setting, the mags will still have gas. Either way, I'll open them up and check it. Can't hurt to inspect them anyway,
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Post by TheEnd on Apr 14, 2014 22:09:47 GMT -5
There is nothing to "break in" with a gas mag. It's a metal container with some O-rings and a couple valves. The valves may stick a bit but some silicone should take care of them as Gunslinger said.
Are you using propane or green gas? Is the container you are using reasonably full? How long are you filling the mags for? What temperature were you firing in?
The fact that all three mags are having this problem points to either your filling technique or an issue with the pistol.
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Post by Shadow (314) on Apr 16, 2014 0:33:54 GMT -5
That's exactly what I thought too. The reason I'm asking is because it makes no sense to me unless a valve spring gets worn but, springs should last and be consistent. But two other airsofters I know say they had a similar experience with KJW mags and that a "break in" period elevated the problem. Sounds strange, huh?
I tried green gas with about 20% liquid still remaining. 5-6 shots. I tried propane with about 15% liquid remaining, 5-6 shots. I tried a new propane tank, 5-6 shots. At all fills, I counted to 10 and made sure that there was full pressure on the tank straight into the valve and to hold it long after any sound of gas transfer. Every fill was inside my home at about 74 degrees. When firing the gun, I used no BBs and held down the slide lock firing in succession of about 2 per second. The gun is the full metal (including upper slide which is heavy) KJW gen 1 P229. I've read that the recoil spring is a bit soft and a harder spring helps with efficiency. I'm wondering if it's just a design flaw.
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Snarf
New Member
Ambidextrous selector switches are the bane of my existence
Posts: 560
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Post by Snarf on Apr 17, 2014 15:37:23 GMT -5
Well I was the previous owner of this pistol so I might be able to help out a bit. I had the same problem, although I was getting closer to 15 shots per mag. I'm pretty sure the mags aren't the problem, because like you said, they aren't leaky. Also, I did open one up and lube the main seal with silicon oil. That didn't help, so I tried the blue gasket maker stuff, and that didn't help either. So you might be right about the low efficiency of the pistol itself, but I don't know the details about whether the spring affects that. Strangely, every review or comment I've seen about that model has been highly positive, so I'm still confused as to why it didn't function well. Anyways, I hope that helped somewhat.
P.S. Don't try to open the mag with the tiny silver piece of tape on the side. That's the mag that I did the gasket mod to, so it could be difficult and/or messy to disassemble.
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Post by xdeloach on Apr 17, 2014 22:41:48 GMT -5
Hi, i recently purchased a KJW MK1 from Evike.com The first time i shot it i only got about half a 17 round mag out. i read a tip that said to store your mags with gas in them overnight. sounds like a bad idea maybe but it worked! now in 65 Fahrenheit it can shoot 3-5 mags with one 20 second load of propane, and the gun itself is not very gas efficient. hope this helps. (Try storing gas in mags overnight for increased efficiency, Worked for me. May not for you. Try at your own risk.)  |
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Post by Gunslinger on Apr 17, 2014 22:48:07 GMT -5
You can always pick up some high flow valves and see what happens.
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Post by xdeloach on Apr 17, 2014 23:00:54 GMT -5
You can always pick up some high flow valves and see what happens. wouldn't high flow mean gas is released easier? |
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inj
New Member
Just a lonely, solo Michigan airsofter
Posts: 57 
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Post by inj on Apr 18, 2014 7:52:50 GMT -5
Ok, so I've recently purchased a Gen1 KJW P229 in a trade. It came with three mags that each hold about 30 rounds. I've noticed that each of the mags will only give me about 5-6 rounds before they're empty, the last round just rolling out the barrel. I've tried both green gas and propane, being careful to take the time and fully fill each mag. After a google and MiA search, I'm not finding much on this exact problem, but some close. Others have found that the OEM fill valves don't have a good flow so most people aren't filling their mags to capacity. Now, here's where my question lies to you all powerful gurus of internet airsoft people. I've been told that it's common for KJW mags to need a break in period. That fully filling and emptying mags over and over will help alleviate this problem so that I can get all 30 rounds down range. Have any of you experienced this and, if you were able to solve it, how did you do so? Any and all help will be appreciated. Please and thank you! Based on your symptoms, it sounds like a problem with the gun to me. Clean everything, lube everything, and... Here's a mod that may help your problem. I did it to my KJW P226 and it worked wonders. I also added ~.75mm of AEG shims BEHIND the piston head, and that helped a lot as well. It increased recoil as well as efficiency. www.airsoftsociety.com/forums/f10/shadys-gbb-teching-thread-90071/index4.htmlIt should be on this page. and one last thing: You sure your mags hold 30 rounds? My 226 mags hold 25, and the 229 is a compact, right? |
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Post by Gunslinger on Apr 18, 2014 10:38:48 GMT -5
The reason I suggested high flow valves is because they would be 1: new and 2: something that is cheep enough that even if it dosent work your not out much more than a few dollars.
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Snarf
New Member
Ambidextrous selector switches are the bane of my existence
Posts: 560
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Post by Snarf on Apr 18, 2014 11:19:13 GMT -5
The 229 mags hold 23 rounds I think.
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Post by Shadow (314) on Apr 18, 2014 11:38:46 GMT -5
Yeah. Either way, I think I've discovered a way to fix it. I'll let you all know when I'm done. How's that Mp5, Snarfdog?
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Snarf
New Member
Ambidextrous selector switches are the bane of my existence
Posts: 560
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Post by Snarf on Apr 18, 2014 13:54:14 GMT -5
It works well on the G&P battery. The other one doesn't work for some reason. But it worked well enough at Farmington, so I'm happy. OF course the semi auto still doesn't work, but oh well.
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Post by TheEnd on Apr 20, 2014 20:01:20 GMT -5
What is confusing me is that it sounds like you are filling it properly, but it sounds like not enough gas is getting into the mags. If it were a problem with the hammer spring or firing pin you would get better performance with less gas. I have a hard time believing it is using a full mag for 5 shots as that would be a lotof gas. However I also find it odd that all three mags have the same fill problem.
I suppose the inlet valve in each magazine could have a fault which prevents a full fill. Do you have any other GBB pistol you could steal a valve from?
You could also try venting the mag to see if it is actually filling to capacity. While it isn't good for the rubber seals it is helpful as a diagnostic. Fill the mag as you have been, and while pointing it away from you outside, press the strike valve. If you get a little puff with no major display it is a problem with the mag filling. If you get a big rush of propane (big white cloud, enough pressure to move your hand a bit, super cold gas) it is most likely not a mag problem.
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