TM Glock GBB parts

More reliable impact on the higher end green gas in magazines, I'd imagine. The stock ones have been known to only partially actuate the release valves.

 
Just to give a bit more poke opening the gas valve when using Propane on a hot day. Read on here that it can be an issue??

 
Yep, pretty well documented on the Airsoft Canada thread too as being an issue - short stroking then the entire magazine venting because the hammer isn't reset. A worthwhile upgrade for sure but certainly more of an issue with the metal slides where you're more likely to get the short stroke and vent issue.

 
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Cheers Proffrink!

Should be a sweet, reliable, powerful Glock when it's finished.

 
Well even without any upgrades they're excellent. Really you can squeeze a maybe 20-30ft/s out of them but other than that most of the upgrades are aesthetic :) Barrel, hop and those gas routers are always a great idea though if you're ok with dropping the money on them.

 
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Hi chaps.

Gun is built with upgrades but I'm getting a short stroke/vent issue but the slide is actually jamming sometimes going back and sometimes 5mm from fully forwards.

However,..

I've noticed that the guarder steel mag catch isn't clicking fully home unless I really pummel it it?

I've got a feeling the Laylax mag rubber is pushing too hard on the UAC nozzle and jamming because the mag is being pushed too high up the magwell?

Is this possible?

I'm running the GM V3 Zero hammer set also which I bedded in as recommended.

May go back to stock and add parts until I get the problem.

 
Don't replace the nozzle until it breaks. Put the TM one back in. Also ensure your routers are the correct way around. The routers are well known to provide a 10ft/s bump by various people in that thread so try measuring it when you can.

Also, are you using WE magazines by any chance?

 
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Na, TM branded G17 mags. I replaced the stock routers exactly as they were.

I think there's something funny going on between the GM Hammer set and the UAC Nozzle & BBU and the Recoil spring.

All smooth with no resistance at all until a mag goes in??

Gonna put the gun back stock and do a proper investigation.

I'll post a report tho.

Current non-working spec;

SLIDE:

Stock outer barrel & slide.

UAC Optic Sights

PDI 6.01 barrel

Nineball/Laylax purple hop bucking

Nineball/laylax Hi-Speed guide rod & spring

UAC Nozzle

Nineball/laylax ally piston (w/valve spring)

UAC BBU

BODY:

GM Trigger bar

GM v3 Zero Hammer

Guarder steel Mag release

Guarder EU lower

Guarder ridged Trigger

Nineball/laylax Mag routers

 
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Your blow back unit or nozzle will be responsible for the magazine not seating correctly. It's possible they designed it with the assumption that people would be using stock Marui routers not LayLax ones but positioned it lower to get better contact anyway (something Marui should have done from the get-go but probably didn't have the money in the budget to work to those tolerances).

 
Ok, cool. I'll change them one at a time and try it again.

 
Righteo, been swapping parts and testing all day and I can confirm the problem is the UAC lightweight BBU.

It's not holding the nozzle at the correct height causing it to jam.

Does anyone have such a problem with the GM or Guarder version?

Cheers

 
Use the stock one until it breaks. 'Upgrading' the BBU and nozzle does next to nothing.

 
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Use the stock one until it breaks. 'Upgrading' the BBU and nozzle does next to nothing.

 
Right, after some engineering on my part, the gun is reliable and working really well. Accurate, very powerful and consistent.

I have one remaining issue regarding the TM magazines.

The loading valves piss out gas when filling.

They do fill and hold pressure. I've tried everything. Bottle pressure, position and angle.

A chap with a WE filled his mags and they were silent filling until they were full. We swapped person, gas and mags. Same problem. On all 4 of mine. All new. All from different places.

Any ideas???

 
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