[Pancho]

The very same, Jason. It has an O-ring on it. and it is very tight.

[azsarge]

whatever it's called.  I was unaware there were upgrade parts available for the KJW pistols!  Do they increase performance any, or just make it more reliable?

[Pancho]

I am not qualified to answer that. []

[azsarge]

I'm sure someone is, Pancho

[Pancho]

What I mean is, that my pistol is neither reliable nor does it have much in the way of performance. I'm sure the upgrades do both, but I am somewhat biased for now, until it gets fixed, and is working smoothly.

[azsarge]

Maybe we can fix the reliability part.  Mine performs well in the way of power, distance, etc.  However, I am having trouble getting some decont groupings at range, meaning anything beyond ~50 feet.  I understand it has a short barrel, and its accuracy is limited.  I clean the heck out of the barrel, and make sure everything is smooth, and then go out back to shoot it.  Up close (~25-30 feet) I can get a full mag within 3-4 inches, without a hitch.  When I extend that range to about 40 feet, I start to notice some inconsistencies.  This may simply be the pistols limitations.  This is with .2 gram Excel, and Green Gas (white and green camo can).  I still love it!  I was considering purchasing a TM Mk23 NBB set, but decided against it after I looked at my old M9 sitting there on my desk.  It was staring right back as if to say, "I know you won't get rid of me.  I know you love me, and I love you!  I am beautiful, I was one of your first, we have history."  I don't know if it's bad to have a GBB speak to me, but if it keeps up that kind of talk I will keep it forever!

[Paco]

The PDI piston head sacrifices a little bit of power for about 200%-300% more gas efficiency depending on ambient temperature.  Too bad PDI doesn't make parts for my car.

[Pancho]

LOL Paco!

[azsarge]

I already get 2.5 mags worth of BB's for every 1 mag of gas.  Thats quite an increase, Paco.  With my given ranges, will I notice any substantial decrease in effective range?  Also, are there upgraded hop-up units available for the KJW M9?  I have messed with mine, but cannot seem to get any better backspin on it, without significantly decreasing range.

Pancho, LOL

[Paco]

My KJW was chronoing at about 280 FPS (average - since the first shot always was about 320, second was about 300, etc) stock.  If i fired off the entire mag (without waiting between shots), I could empty about 90% of the BB's before I ran out of gas.  With the PDI piston head in there, I can empty out two mags worth without refilling gas.  First shot chronoed at about 280, but averaged about 265-270 (much more consistant shots).

[Pancho]

This is the one I bought?

[Paco]

IIRC, yes - but that was about 6 months ago now (back in March).  You've now owned that GBB twice as long as I did.  []

[Pancho]

Jason, I am not even trying to insinuate that it's a bad gun at all. I made a good purchase, and I like the gun. I am just having trouble with it now, and it's frustrating me a bit. I'm not enough of a mechanic to know how to fix it. I know you guys all say it's easy, but it's only easy when you understand it. Until then, things like this are a mystery. Maybe I should spend less time on the internet, and more time devoted to tearing it apart and figuring it out!! The instructions are useless to me due to the Japanese writing. What routine maintenence should I be doing to prevent this? Or, is there an ENGLISH website that goes over this stuff. Pictures along with text would help a lot!

[azsarge]

my responses in random order:
  www.airsoftplayers.com has manuals to help you out.  I dont remember what heading they are under, but they are there.  The question is whether or not they have the KJW M9 in there.

The best way to figure stuff out is to take it apart!  I always do this whenever I get a new gun.  (I even took apart my remington electric razor to see how it works, but I won't stray from the topic TOO FAR here).  I took apart my KWC G17 GBB, KJW M9 GBB, HFC MP-5 springer (with spring flying all over, lucky me to find them all).  I had to completely figure out the MP frm the inside out.  Since everything flew out when I opened it, I had to methodically figure out where they SHOULD go, and check the movement to be sure.  It took me about 1 hour before I learned what every part did, and most importantly, where it went.  I took apart my TM M4A1 RIS when it came.  Same with every gun I own.  The moral of the story is, TAKE IT APART!  If you don't feel comfortable fiddling with it, thats fine also.  Someone like me will be there to rip it right apart for you  That way, you have someone to blame!  You are in luck that I own this pistol, and know it inside and out.  Although I am unfamiliar with the PDI upgrades, I will know what parts they replaced, and can figure out their function.
[breathes]
And about you spending less time on the forums and more with the gun, I AGREE!  the forums are only a tool to help you better understand this stuff, it's not a substitute for doing it!  Get in there with a allen wrench (hex wrench, whatever)set, and a screwdriver and get to it!  It is a very straight forward design.  If you can figure out real steel, you can handle this one.  I am always here to help you if I can in any way.  So feel free to ask anytime you need help  Good luck!

[Pancho]

Okay, who in here is a whiz w/ GBB's? My KJW Beretta is not functioning. Nick thought that is was a magazine issue, andordered me a new mag. While I like having an extra mag, that did not solve the problem. Here is what it did, and now does:

When the problem first arose, it would fire just fine for 3 or 4 rounds, then it would <i>sound</i> and <i>act</i> like it was firing for another 3 or 4, but it really wasn't. Then it would sort of 'half-fire' like it was out of gas. But the mag still had plent of gas in it.

Now, I load in a fresh mag, all gassed up, and cock it, and when I pull the trigger, ALL of the gas is released from the mag, and no BB is expended.

Any ideas on this?