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AR15.COM
7/24/2013 6:41:05 PM EDT
What does it mean to upgrade a lock work with match parts.This would be concerning a Colt 1991Compact 45Acp.
7/24/2013 7:24:50 PM EDT
[#1]
In the old days the trigger/hammer was referred to as the lock works.

So I might assume he means the hammer, sear, disconnector.
7/25/2013 5:13:28 AM EDT
[#2]
I agree its the fire control parts...hammer/trigger/sear/disconnector