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Thread Tools |
September 9th, 2019, 00:59
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#1 |
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M4 GBB WE burst randomly on semi.
Well so I bought this WE replica from a dude.
I opened it,painted it and cleaned it. The only problem it has is that sometimes on semi it burst randomly then goes back to normal semi. I removed the auto sear as it doesnt seem to change anything. |
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September 9th, 2019, 01:02
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#2 |
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I dont know which gen it is as there is no engraving or anything.
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September 9th, 2019, 05:38
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#3 |
 E-01
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Is it open bolt?
First thing to check is the o-ring on the gas piston. Remove the BCG, pull the piston forward and oil the o-ring at the back with pure silicone oil. Also what kind of gas are you using? Is the bolt cycling all the way back? A weak (partial) cycle can give you a sloppy sort of burst. Do you have an NPAS installed?
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September 9th, 2019, 09:50
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#4 |
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Open bolt yeah.
Propane |
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October 20th, 2019, 13:14
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#5 |
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Try replacing the Sears.
Kyairsoft has the part. A few bucks plus shipping Replacing the Sears can be done by following some videos online
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M4 MK12 MOD0, SBR, KC02 G17 (B. A. Level 2 Cert.) |
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