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fordkicksass
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Posted: 7/8/2012 7:24:09 PM
[Last Edit: 8/28/2012 11:22:28 AM by fordkicksass]
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Dano523
Courses avec des cisaillements.
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Posted: 7/8/2012 7:47:14 PM
Working backwards, its the scallop cuts on the buffer face that is causing the release problem. On the positive note, when the upper is locked down on the lower, the back of the carrier pushes the buffer back away from the retaining pin, to take the buffer retainer out of play.

Back to one,

tape the trigger all the way back, lock the upper on the lower, pull the charging handle all the way back, then let it go forward. Now shotgun the upper open slowly,and see if the disco has retained the hammer (hammer was cocked back far enough for the disco to get a hold of it). Also, double check the disco spring to make sure that the disco is spring tensioned forwards. If when you shotgun the upper open, find that the hammer is on the back of the FP/carrier, you will need a new hammer to solve the problem.
Posted By PlaymoreMinds:

'Twas not the <cough> sweet and innocent <cough> PlaymoreMinds...

<---skips away in frilly skirts to Candyland, leaving gutters and snorkels FAR behind.
a308garand
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Posted: 7/8/2012 8:28:30 PM
Yep, your hammer is no good. The bottom part of the hammer, where it is caught by the nose of the trigger, the area is either worn or ground away.

Sounds like the disconnector is catching correctly because the hammer is caught when the trigger is held to the rear. This tilts the disconnector up into catching the hammer hook.

When the trigger is not pulled to the rear, it is caught by the "sear" surface at the front "nose" of the trigger were it rides into the very small notch cut into the bottom of the hammer.

You may just want to replace both trigger & hammer at the same time to ensure you start fresh
"Your times is over! You are gonna die bloody; all you can do is pick where!"
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fordkicksass
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Posted: 7/8/2012 9:00:50 PM
[Last Edit: 8/28/2012 11:23:10 AM by fordkicksass]
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Dano523
Courses avec des cisaillements.
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Posted: 7/8/2012 11:36:49 PM
If the disco was retaining the hammer, then suspect that the disco is not sprung correctly or binding in its travels in the trigger.

Work the disco a few time back by hand, and confirm that the spring tension for it is great, and the disco is not binding up in the trigger in any way in it full travel.
Posted By PlaymoreMinds:

'Twas not the <cough> sweet and innocent <cough> PlaymoreMinds...

<---skips away in frilly skirts to Candyland, leaving gutters and snorkels FAR behind.
fordkicksass
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Posted: 7/9/2012 10:26:09 AM
Thanks I'll try working the disconnector to see if it for sure moves freely tonight after work.
Big-Bore
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Posted: 7/9/2012 6:21:20 PM
[Last Edit: 7/9/2012 6:22:52 PM by Big-Bore]
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