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M1911 Mark II PTP - magazine rattling


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#1 bob636

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Posted 13 July 2010 - 07:19 PM

Hello everybody,

So I bought my first GBB pistol yesterday, the M1911 Mark II PTP, from AirsoftGI. I wasn't able to fire it at all that day since the green gas hadn't arrived yet, but I was screwing around with it for awhile. The magazine seemed solid, that is until I tried to fire it today. I loaded the mag with green gas and .20g KSC perfects. Immediately after filling the mag with gas, it started to rattle around. It sounds like there is something metal loose in the mag. It functions fine, but I do not want to use it more for fear of damaging it. It's still under warranty as well. Is this something common and easily fixable, or am I going to need to RMA this mag?

Also, if I can fix this myself, where can I find instructions to disassemble it? I can't seem to find a guide for this specific mag, probably since it is so new.

The green gas, mine shipped from Airsplat:
http://www.amazon.co...79077356&sr=8-2

Thank you in advance,
-Bob

#2 Spiggy

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Posted 13 July 2010 - 11:21 PM

it's the expansion tube inside the mag gone awol.  While uncommon, it happens in most gas guns.  The tube is designed to keep gas from siphoning out the fill valve.  Some competition shooters will actually remove the expansion tube for "more capacity."  The argument varies more than there are guns on the market.  

They pop back in easily if you have proper hand tools, but opening the magazine up will void the magazine's protection.  

If you are unsure, the KWA service center is always more than happy to take a look.

#3 bob636

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Posted 14 July 2010 - 10:52 AM

Thank you Spiggy, and I have two last questions:

What tools would I need?

Is there a magazine disassembly guide somewhere? I've only been able to find guides for the gun itself

Thanks again :)

#4 Spiggy

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Posted 14 July 2010 - 12:25 PM

There's no magazine guide since the gun is so new.

just a warning, this will void warranty[as indicated in my title line]

You'll basically need a set of pin punches, like a 3/32 will do it.  as well as a Phillips driver and a plastic mallet.  Maybe some superglue.


First foremost, release all the gas.  This will keep you from crapping yourself.  Next, remove the plastic base plate on the magazine with the Phillips.  This will show the base plate.  Drive out the two pins with the 3/32 punch and slowly pull out the base.   The tube should fall out with it.  If you look closely, the tube goes into the base.  Just put the base and tube on a hard flat surface and give it a light tap with the plastic mallet.  Dab some super glue on it and let it dry.  DO NOT INSTALL IT IF THE GLUE IS STILL WET.  When the glue settles, just reassemble

#5 bob636

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Posted 14 July 2010 - 02:55 PM

Done and done! Thank you again Spiggy, your instructions worked like a charm. Only thing I did differently was I used a 1/16 Allen key in place of the pin punch. You've saved me a shipping cost and a week of waiting. :)

#6 RSTFamily

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Posted 02 February 2013 - 09:49 AM

Sounds like the Same Problem with my New Mark III PTP Magazine.

I have the correct tools and will repair in a few minutes....thanks for this post, I figured as much that was the problem.

#7 Chuck S

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Posted 02 February 2013 - 03:09 PM

Yep, I had this problem with one, maybe two M1911 MK magazines.  Seems very common.

-- Chuck

#8 General Pickle

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Posted 17 February 2013 - 02:20 PM

I had this problem with my original MKII mag, though that was because I dropped it on a hard wood floor. Good to see a post about this fix here, I did it just by intuition and experimenting :P Awesome pistol though right? Every time I bring it on the field it draws attention.

Attached File  Photo 2013-02-17 14.13.24.jpg   133.37K   8 downloads




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