ThanksA few things can cause the problem.
Bad safety and weak safety spring as noted above.
Also, if someone went to far to eliminate creep on the hammer, so the hammer won't hold. To short a hammer spring. 2" hammer spring length is minimum on match triggers.
You should also have .020 minimum hammer engagement on NM triggers.
Even badly worn hammer & trigger pins will cause a bad fit.
You could change these parts 1 at a time to see if the problem is cured (if ya have spares) before sending it out.
Just try dry cycling (without ammo) to check it.
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Bad safety and weak safety spring as noted above.
Also, if someone went to far to eliminate creep on the hammer, so the hammer won't hold. To short a hammer spring. 2" hammer spring length is minimum on match triggers.
You should also have .020 minimum hammer engagement on NM triggers.
Even badly worn hammer & trigger pins will cause a bad fit.
You could change these parts 1 at a time to see if the problem is cured (if ya have spares) before sending it out.
Just try dry cycling (without ammo) to check it.
