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Discussion Starter · #1 ·
So today I installed the following parts into a JG BAR-10 G-SPEC base gun.
Laylax:
Zero Trigger(custom)
orange piston
spring guide
SP150 spring
cylinder head
damper kit
PDI 303mm 6.01 Inner barrel

The problem is this:
Worked fine for about 50 shots
Now the piston is apparently refusing to catch about 75% of the time. What it seems like to me is a worn out sear as I've seen the problem before, but the zero trigger was new out of packaging today.

Any feedback is much appreciated.
 

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Check your trigger mech is still screwed in tight, any play/movement there and you will end up with the symptoms you are describing. If it is and your still in dought pull it out and check it over, both mech and piston, re assemble it and try again.
 

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Discussion Starter · #3 ·
I opened it up to inspect everyhting and found the spring guide to be unscrewed which after some reading I believe leads to the spring guide being too long and not allowing hte piston all teh way back. I went to the store, got some loctite, applied it, and reassembled. Now I'm waitign for it to set then I will update with results.
 

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Same problem I had, same fix for me. It will come loose again eventually, but you'll get plenty of life out of it. I used the blue? non-permanent locktight since I wanted to be able to disassemble if need be...
 

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Discussion Starter · #7 ·
So now I'm getting the same problem again. Nothing is loose as I loctited it all. For one reason or another it works fine when I drop in the staock spring, but with the SP150 it just won't catch the sears.
 

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Go back and check your mounting screws are tight. It might also be worth checking to see how much play you have between your cylinder and the back/sear end of your piston. To much and the pressure of the spring will force the piston up and away from the trigger sear. Have you got anything else in there that your not telling us about...spring spacers for instance?
 

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Discussion Starter · #9 ·
Mounting screws are nice and tight.

The play room is about .5mm or so. I'm not sure if thats too much or not.

There is nothing in there other than your normal set of parts.

May I also pose an additional question. What is the best way/material to use when making barrel spacers for a G-spec?
 

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.5mm is fine. The only thing I can think of is pull it apart again and check that the trigger sear isn't sticking on anything or jamming. Also check it is free to return to the upright position. It may well be sticking on the reciever body or it might be being forced under the tension of the mounting screws to bind in some way.

Re Barrel spacers, mine look like this....



They are made of a combination of white nylon spacers I took out of my CA M24 when I scraped it for parts, and Black electricians tape, you don't need the nylon I just used it save tape. All I did was wind the tape around the barrel until the spacer is an interference fit in the outer barrel, start at the hop end first and check each one as you make it, then when you have done all of them grease them up with silicon grease and slide gently into the outer, if you have made them all the right size you should have a nicely supported barrel ;) NOTE: The tape between the spacers is there to stop them sliding around during fitting etc.
 
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