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WIP: Upgrading Your Tokyo Marui Glock

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Old July 25th, 2012, 20:49   #46
e-luder
 
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Originally Posted by hattrick View Post
After two grusome years I couldn't take NOT owning a glock anymore. Picked up my third (2 already long gone) tm glock 17. Reasonable price used with an authentic GL-10

Took out the BBU to install the nightsights.
Noticed there is only ONE nozzle return spring. (two groves provided)
I seem to recall there is supposed to be another.
Someone comfirm this for me please?

there is only suppose to be one spring in there. the other side has a bigger notch so the second spring wont fit in there unless you cut it to length.
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Old July 26th, 2012, 11:46   #47
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plus there's no groove in the top of the nozzle. So even if you're not sure which side the spring is supposed to be in, it only fits on the one side. If you put in the wrong side the spring would not sit flush with the BBU.

When I first took mine apart and re-assembled it I thought I was going crazy too when I only found one spring!
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Old July 26th, 2012, 17:39   #48
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After inspection you are both correct. One of the groves has a small peice that would interfere with the springs function if yada yada we all get it.....

Time to drain my bank account on upgrades now.

Installed a systema inner barrel today. Works quite well. Noticed you didnt have this one on the initial list.

-alex
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Old August 13th, 2012, 11:13   #49
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Hi guys,

I have recently acquired a Glock 17 with Guarder frame and NWO Commemorative Slide. However I am having issues with cycling. I have cleaned and lubed everything but the slide just won't cycle smoothly. It appears the BBU is getting caught on the hammer bearing and the bit in front of the bearing. Sometimes the slide will go all the way back and forward, resetting the trigger. Other times it won't go all the way back and you have to cock the slide to reset it.

I have tried to file the bit of the BBU which comes into contact with the hammer but it is has only improved it slightly and i'm not sure I feel comfortable removing anymore. Does anyone have any advice?
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Old August 13th, 2012, 11:32   #50
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Was your glock well used before you installed these parts? Can you open it up and take a picture where the top and lower meet?

Do you have any other upgrade parts in the gun? Recoil Spring? Hammer spring?

The stock recoil spring may not be strong enough to return the slide back to battery, and an upgraded hammer spring may cause additional pressure to the blowback housing causing the slide stick.
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Old August 13th, 2012, 11:52   #51
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Thank you for the reply. I actually got the Glock second hand so I am not sure but there appears to be a little wear. The slide an frame seem quite new. I will get some pictures very shortly to show you. I believe apart from this the Glock is standard TM.
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Old August 13th, 2012, 12:21   #52
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Originally Posted by Mobot View Post
Hi guys,

I have recently acquired a Glock 17 with Guarder frame and NWO Commemorative Slide. However I am having issues with cycling. I have cleaned and lubed everything but the slide just won't cycle smoothly. It appears the BBU is getting caught on the hammer bearing and the bit in front of the bearing. Sometimes the slide will go all the way back and forward, resetting the trigger. Other times it won't go all the way back and you have to cock the slide to reset it.

I have tried to file the bit of the BBU which comes into contact with the hammer but it is has only improved it slightly and i'm not sure I feel comfortable removing anymore. Does anyone have any advice?
That Guarder slide is a troublesome one. The older 2010 version that is made of the weaker aluminum has trouble mating to the Guarder frame. Often times, the underside side of the slide (the part where it "touches" the frame) tends have friction with the frame near the front (around the takedown lever). Also, a lot of Guarder slides have problems with the slide rail guide. Slight sanding of the rail guides is needed for maximum cycling.

You'll need to sand to it down to eliminate any possibility of any friction occurring. I've run into the same problem with that specific slide and sanding both areas fixed it.

For the most part, the hammer bearing is quite easy to retract. It should spin and being a circular object, shouldn't catch onto your BBU provided it's properly lubed. It should "roll" along your bbu. You can switch to a smaller hammer bearing but you'll have trouble getting the sear to lock onto your hammer even if it cycles fully with a smaller bearing. Thus the result of this is the hammer staying uncocked at all times.

Do everything that p.phresh said. Install the hammer springs correctly and all that jazz. and if your still having problems, sand the slide where I've told you.
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Old August 13th, 2012, 13:33   #53
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Thank you guys,

I have some pictures here (albeit not very good ones) which shows where the slide is sticking:


Note the gap between the slide and frame here. It seems as though the hammer is pushing the slide upwards as it comes back.


(I forgot to put the hammer screw back in but it did it with it in anyway)


You can where I filed here. That is where it looked and felt like it was catching.

I also have a video here aswell if that helps:
http://youtu.be/PKWH9yfLEpE

I will look at getting an enhanced recoil spring too and sand around the slide rails and see what happens.

Thanks again for your help, mucho appreciated!

Last edited by Mobot; August 13th, 2012 at 13:54.. Reason: More info
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Old August 13th, 2012, 15:23   #54
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One more thing. I have not got a mag catch spring and it is the hardest part to acquire, ever. I was just wondering if someone would be so kind as to take a picture of their TM G17 mag release spring and provide measurements for it as I think I am just going to make my own. It would be HUGELY appreciated.

I must say this thread has been mighty helpful. Big thanks to all, especially e-luder for the write up.
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Old August 13th, 2012, 16:10   #55
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Thank you guys,

I have some pictures here (albeit not very good ones) which shows where the slide is sticking:


Note the gap between the slide and frame here. It seems as though the hammer is pushing the slide upwards as it comes back.


(I forgot to put the hammer screw back in but it did it with it in anyway)


You can where I filed here. That is where it looked and felt like it was catching.

I also have a video here aswell if that helps:
http://youtu.be/PKWH9yfLEpE

I will look at getting an enhanced recoil spring too and sand around the slide rails and see what happens.

Thanks again for your help, mucho appreciated!
the strenghtened recoil spring should fix this. the recoil spring you are using is not strong enogh carry your slide. what is happening in your video is a common issue and there is no need to modify the bbu unless you want the gun to cycle the gun more fluently. or you can just get a smaller hammer bearing. you can keep filing at the BBU but it wont solve the problem but the spring will. Plus, if you go too far, the bbu wont be able to keep the hammer down.

for the mag catch spring, you can order replacement springs online. MAG makes one amd contains all the little springs including what you are looking for.

google, my friend. Google.
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Last edited by e-luder; August 13th, 2012 at 16:23..
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Old August 13th, 2012, 16:33   #56
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My buddy just put in an order with WGC and I got a Guarder enhanced recoil spring, AIP 8mm hammer bearing and a MAG replacement spring set which i ordered for a different reason. However the set doesn't seem to include the mad catch spring? I have literally googled forever trying to find one!
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Old August 13th, 2012, 17:21   #57
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Originally Posted by Mobot View Post
My buddy just put in an order with WGC and I got a Guarder enhanced recoil spring, AIP 8mm hammer bearing and a MAG replacement spring set which i ordered for a different reason. However the set doesn't seem to include the mad catch spring? I have literally googled forever trying to find one!
Sorry about that. I forgot that it didn't come with one. Some tech eh? lol.

Anyways, I found it. Just google harder. Since your not Age verified, I can not disclose the direct link to the part as it goes against forum rules. Sorry man.
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Old August 13th, 2012, 17:39   #58
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Lol. Ah man that sucks! I'm from the UK aswell so I cant be verified. Can I ask, is it called a mag catch spring or a mag release spring? Even searching for the part number (G17-28) comes up with nothing!
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Old August 14th, 2012, 02:02   #59
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I had the same problem with my guarder slide, will be staying away from them if I do get another Glock. I fixed mine by sanding the BBU, but only enough that it was still able to push down and lock the hammer. I stripped all the internals from the slide leaving only the BBU and I manually cycled the gun with my hand to identify the exact contact point causing the drag. I sanded it slowly until I got the smoothness I desired. I also sanded the lugs on the frame and polished them to ensure that minimal friction was present and used 2 recoil springs together.

The other thing is, I upgraded to the AIP steel trigger kit (not sure if its the same as the 8mm bearing that you're getting) and the included bearing is slightly larger with the stock counterpart which makes pushing it backwards via the slide even harder. Either opt out with a smaller bearing or mod your BBU. I only tend to mod parts that I know I can have access to in case if I screw up, but luckily, I didn't.
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Old August 14th, 2012, 09:07   #60
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Either opt out with a smaller bearing or mod your BBU. I only tend to mod parts that I know I can have access to in case if I screw up, but luckily, I didn't.
Actually, the 8mm hammer bearing doesn't work with the AIP hammer set. Even the stock hammer bearing can't lock the hammer to the sear. It was a strange discovery.

The interaction point and the measurements between the hammer and sear is a bit "off" than the stock one because of the material it's made out of. It's a bit thicker. That's why the hammer bearing on the AIP set is so huge.

I've installed dozens of these hammer sets alongside the 8mm bearing and they all seem to have the same story. But it may be different from his experience.
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