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PMag Tear Down Guide

LM4 PMAG Guide Tear Down

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#1 Jakeedaman21

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Posted 25 July 2012 - 07:32 AM

Due to popular demand, here is a pictorial guide to taking apart your new PMag! Please forgive the picture quality, its an iPhone, and I am not a professional photographer.

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First, remove bottom plate and the two screws.
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From the top, remove the two small hex screws and the pin holding the feed lip assembly.
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Get out some pliers.
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Kind of like... pulling a tooth. Grip as shown and pull. If you don't want to hurt the finish like I did use some rubber spacers.
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Keep pulling.
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Victory!
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Remove the follower and spring, as well as the two plastic arms.
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Remove this pin from the inside.
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Another view of that pin from the inside, push it outwards to allow the silver thingy out.
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Great success! Feel free to adjust to your whim.
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For those more adventurous, remove the two bottom side screws and pins.
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A view of the inside.
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Remove the two side screws and pull the copper piece out. One of the screws on mine had its threads stripped from the factory, causing a leak. Suppose I need to call the pro shop.
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That's it! The PMag is in fact not doomed! I actually prefer its design to the GI Mag, as the feed lip part is easier to access and because its smaller will probably be cheaper. If you have any questions comments or concerns, feel free to contact me.

Edited by Jakeedaman21, 25 July 2012 - 07:33 AM.


#2 R_King91303

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Posted 25 July 2012 - 09:50 AM

Hmm... it looks like the guts of the PMAG are a GI mag, with just the polymer body. Can this be confirmed? If so, I wonder if there are any plans to sell the PMAG shells for those that want to convert their GI mag to a PMAG...


Posted from my iPhone

#3 kullwarrior

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Posted 25 July 2012 - 02:09 PM

is it me or I cant see the pictures

#4 R_King91303

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Posted 25 July 2012 - 03:44 PM

The pics loaded fine for me...


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#5 Jakeedaman21

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Posted 25 July 2012 - 05:52 PM

Sticky?

#6 MultipleParadox

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Posted 26 July 2012 - 04:48 AM

Sticky

Thanks for the guide
I was doing exactly that but mine was apparently stuck and I easn't pulling strong enough to get it loose.

Knowing it was in fact the correct method I just use a bit more force and got it out. Got 3 mags working out of 4 now. Just need a new fill valve for the fourth :D

Thank you!

#7 Bravo6

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Posted 26 July 2012 - 09:51 AM

where can i get that really small allen key?

Edit: and that blue tool?

Edited by Bravo6, 26 July 2012 - 09:55 AM.


#8 Jakeedaman21

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Posted 26 July 2012 - 10:15 AM

Both are from Ace hardware, just a normal full Allen key set and the smallest punch I could find.

#9 Bravo6

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Posted 26 July 2012 - 12:30 PM

Ok. Thanks for the info.

#10 niko_gpsy

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Posted 26 July 2012 - 02:18 PM

Sticky!!  lol

#11 GBBSpike

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Posted 30 July 2012 - 07:47 AM

View PostJakeedaman21, on 26 July 2012 - 10:15 AM, said:

Both are from Ace hardware, just a normal full Allen key set and the smallest punch I could find.
I have been trying to find this Allen key. Did you get a metric set of Allen keys?

#12 Jakeedaman21

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Posted 30 July 2012 - 09:59 AM

I honestly don't remember... In out of town so I can't check. The set was 12 keys held in a red holder with 6 on top and 6 on the bottom.

#13 gregoryv022

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Posted 02 August 2012 - 05:10 PM

In regards to the small Allen keys and other small screws and fittings that are prevalent in airsoft weapons, i found a good kit that houses them all. It is also suprisingly versatile. here it is.

http://www.ifixit.co...r-Kit/IF145-022

I own this kit and can vouch for the quality and usability. you may not use all the bits, but they are nice to have around if you a DIYer like me.

#14 MoFo

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Posted 06 August 2012 - 11:07 AM

FYI, you do not need to remove the feed lip assembly to remove the shell and get to the gas valve.  Just remove the 2 screws on the bottom and turn the mag upside down.  Then shake it and gently tap the shell and the gas chamber will slide out.  Then follow the above instructions.

Also, I have 2 mags that leak gas from screws on the side of the metal chamber (per the bottom photo).  With the shell on, it may appear that the mag is leaking from the top.

#15 Jakeedaman21

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Posted 06 August 2012 - 11:17 AM

I have the same problem on one of mine, one of the screws that holds the brass looking thing in the middle of the gas chamber is stripped. I haven't tried to change out screws yet, but I suspect that the leak is caused by that not pulling the rubber o-ring tight enough to the side.

#16 darkbluedean

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Posted 27 August 2012 - 05:46 PM

RESOLVED.  I didn't have to remove the 2 hex.  The problem was, the valve was in there really, really, really tight. When I finally got the valve out, cleaned it up, lubed the o-rings, and we're back in biz.  My PMAG was leaking at the top before this.

To remove the valve, do I have to remove the 2 small hex screws first?

Edited by darkbluedean, 28 August 2012 - 01:08 PM.


#17 dazdarren

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Posted 02 October 2012 - 03:40 AM

Is there any trick to pulling the shell off?

#18 darkbluedean

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Posted 02 October 2012 - 08:21 AM

After you remove the two bottom screws, tap around the shell to try and loosen it up. Then, while holding the shell lightly upside down, try to hammer down the bottom with your palm.  It'll slowly come out. For extra precaution, do this on your bed just in case it comes crashing down so you don't break the feed lip.

#19 dazdarren

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Posted 11 October 2012 - 04:15 AM

Yea thats not working. Any other tips?

#20 AirsoftDreviews

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Posted 14 October 2012 - 04:02 PM

Does anyone know if kwa Is going to make aftermarket followers for the pmag an the standard lm4 mag's? Because when I loaded mine I put too much force to load it with the speed loader and its alittle deformed It loads and works fine but im worried it will just snap of or something. Attached File  get-attachment-2.aspx.jpeg   25.38K   23 downloads




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