glock mag not filling right

[bong]

WHen i fill the mag (either), it goes HISSSS.... for a couple seconds and then you can actually see the gas come out, So i stop filling. When i go to shoot (even only semi auto), i dont get more than 10 bbs off (usually). Really ghey, especially when your playing and you run out of gas and then get shot on the run.

im pretty sure im loading the gas and everything right.

[Breakdancer]

blew a O ring would be my guess but you arn't using green gas are you this maybe should go into tech questions

[Knief]

Try adjusting your fill angle, you'll get one that provides the best nozzle to valve fit. Some mags just regurgitate gas when you fill them, some don't. Make sure that you're applying enough pressure to open both the mag's valve as well as the internal valve mechanism of the gas canister.

If you're still concerned, fill the mag and let it sit for a day or two. If you can still fire it, then you know it's not a leak.

[Bigmack]

gas venting from the top? or around the lower fill nozzle?

[bong]

yes, green gas (eh.. supposed to be able to take it)

Lower Fill nozzle.

Jdl, the problem is that im not even sure if i have the mag filled in the first place. But the thing about the internal mechanism and stuff and pressing hard enough is good. Ill try applying more pressure when filling. Thanks

[Knief]

If you're getting off "10" shots, then you're filling it, just not enough.

As for whether a gun can "take" green gas, that's a more complex issue. I assume we're talking about your KSC glock here, right?

Any gun can "take" green gas, the question is, "for how long?" The simple act of shooting a GBB on any kind of gas is self destructive to the gun. The parts are all operating in a high stress environment and as such, will eventually break. It's not a question of will it break, but a question of when.

So now, green gas is used as opposed to HFC 134a, thus increasing the stress put on the parts. The increased stress will cause the gun to malfunftion sooner. A lot of people choose to take that risk for the increased performance, knowing that they have, in some cases severely shortened the life span of their replica. But when you take that risk, you MUST know that you are in fact shortening the life span of your replica.

So for me, the issue of using green gas over 134a isn't whether or not the gun can "take it", but whether or not i get sufficient performance from 134a and is the risk worth it.

If a gun fails to cycle with 134a, or is getting poor performance (keeping in mind that some guns, the maruzen P99 for example, will get very low velocity with 134a, but because of it's superb hop up still achieve very nice range), then you pretty much have to switch up to green gas, and that's all well and good, and pretty much expected.

But if you can get good performance with hfc 134a, why juice it up to green gas? The added velocity, which translates to added range (but not really added effective range. You still have a very short barrel, so your effective range can only be so good. This clause does exclude pieces without hop up, however). But then, a pistol is meant to be used to close in work, not sniping targets from 50 yards. So why do you need the extra velocity? You really don't.

Now, the KSC glock series functions fine with hfc 134a, they get good velocity and great effective range with a properly set hop up. With the series as a whole, green gas is unnecessary unless you need it to properly drive a metal slide and upgraded recoil spring.

And in regards to the glock 18c specifically, with it's full auto mechanism, it is already in a high stress situation than the rest of the KSC glock series (sans the 26c, which is of course, also full auto, so subject to the same stress), so to add to that even further will cause problems. The glock 18 has been cited to have many more problems than the rest of the glock series (again, sans the 26c), mostly stemming from the full auto capabilities.

Now, this won't have any affect on the mag problem's you're having, but it's good to note for the future safety of your gun.

So now to the mag, since it's the fill valve that's spurting out gas, and only when you're filling, the problem is in your fill technique. You are still getting gas in the mag (enough for 10 shots), and it seems to be staying (did you try leaving it over night?) You can also tell when there is gas in the mag by filling it and applying slight pressure to the valve on the top back of the mag. If there is resistance, then there is gas in there, if there is no resistnace, then there is no gas in the mag. First push it when you know that there is no gas in the mag so you know the feel of an empty mag. Then fill it the best you can and push with the same amount of force needed to depress the valve when the mag is empty. Be careful here not to fully depress the valve and manually purge the gas. That can cause damage to the valve in the top of the mag and cause further leakage (if you ever need to manually purge your mag, do so very slowly with as slight a pressure that you can while still allowing some gas to escape. When the gas is released rapidly it cools rapidly, and the temperature change as well as the pressure it exerts on the seals can damage the valve).

[bong]

i know about the valve offering resistance. Can you actually tell how MUCH gas is in the mag by its resistance against your finger? cause half full and completely full seems to feel the same..

and on the green gas, my glock does have the metal recoil spring and metal slide you mentioned. when you were writing that did you assume i had the stock glock? Ive read in places that the upgraded glock will not cycle well enough with the weaker gas

edit: True dat on the massive problems with the glock. also, yes, ive left the mags overnight before and they dont leak out. i dont know wtf is wrong with my fill technique. Its the gas can is perpindicular to the mag and im pushing hard enough, and i stop when it starts shooting gas back out at me (when i can see it).. that sounds pretty correct to me.

[Knief]

Yes, i was assuming that you had a stock glock. With the metal slide, green gas is probably a good idea.

There is no way to tell whether the mag is full or half full just by pressing with your finger. There may be a bit of difference in the pressure needed to depress the valve, but i can't notice it on my glock, good luck trying on yours.

I think i may have just experienced the problem you're having earlier today. I gassed up the mag with green gas and tried shooting it. I got the same few shots and then nothing (also had the extra gas spewing out of the valve at first, but i'll address this later). But when i took the mag out, there was still a lot of pressure on the valve, so what it seems like to me is that the green gas is exerting too much pressure on the valve for the hammer to depress it properly. Do you have an upgraded hammer spring on your glock? I don't on mine, and that sure would account for the problems. An upgraded hammer spring should do the trick. I'm going to lube that whole area and try it again to see if it helps at all. If that clears it up, then there's no need to buy the hammer spring, besides, i've heard it's a bitch to put in.

Now, in regards to the excess gas spewing out when you fill the mag; I'm getting that as well when i fill my mag with green gas as opposed to hfc 134a. I'm using the stuff pictured here: www.airsoftatlanta.com/images/gaskittw_jpg.jpg

Now, it seems that either the nozzle is sized every so slightly different or there is an effect of the higher pressure gas causeing some effect on the valve that more gas spray's back. I was able to reduce the amount of spray back when i adjusted my fill angle a bit, that could still do the trick for you.

[bong]

on a side note:
What does part #236 on the mag chart do? I think ive lost it by now, but neither me and jacko know. IT fits into the holes behind the gun (on the side of the valve), but doesnt stay in.

[bong]

yes, i have the upgraded hammer spring also. mostly all the internals are upgrades (that CAN be upgraded), besides the tightbore inner barrel. Yes, i am using the same type of gas that you are (same can).

talking to Jacko before, he also mentioned my Hiflo valve on my standard mag using too much gas, even on semi auto i cant even get a full mag off. But i still get the same problems with my 49 round mag, so the hiflo doesnt seem to make a difference.

How are you filling it? (fill angle).

edit: About the lubing, i lube my gun SO much to try it in good working order. so i dont think thats the thing causing it, and i have the upgraded hammer spring anyway

[Knief]

I'm filling it the way you would think to fill it, and the way you fill any other mag. But while i'm filling, if i notice excess gas being spit back out, i slightly (by a couple of degrees, not much at all) adjust the angle of the can to see if that fixes it.

When you fill your mag, are you using a counting system, or filling it until a lot of gas sprays back?

[bong]

filling it until the gas that sprays back is noticeably greater.

I also keep somewhat of a mental count, if i goes like to 8 seconds of filling ill stop and think *wtf..*

also with the mag full of gas the valve sticks out quite a bit, probably 3-4 mms. When the gas is not full the valve sticks out like 1 mm. do you get the same thing on yours?

[Knief]

well, with the extended mag (49 rounder), you do have to fill that longer because of the larger gas reservoir. That could take care of the problem with that mag.

And on my mags, the valve sticks out the same distance whether it has gas in it or not, there is just more pressure on is when there is gas in it.

What part # do you think that your mag may be missing? Maybe that has something to do with it.

[bong]

well i was talking aobut 8 seconds for teh standard mag.. how long do you think for the 49 round?

and if your refering to my reply on what part #236 does when you asked what part i think im missing, part #236 does thing (i think its a thumb grip)

[dextra81]

I get the same problem while filling up my mags for my glocks. The same on all of the Glocks that I have; Glock 26, Glock 17, and the Glock 18c...

But I have learned just to keep filling it a couple seconds longer while the gas continues to spit back out, I know that tends to damage the fill valve, but for me that's the only way for me to get the mag up to a full fill.

I'm not sure if that helps.

Dex