I have replaced the trigger on an HK USP 45 and after reassembly I am having the following issue. I pull the trigger and the hammer does not cycle completely through as it should and the gun will not fire. I have narrowed the problem down to part number 163 on the parts diagram listed below:
What is the correct positioning for this part inside the trigger assembly area? I can move the part around while troubleshooting the issue but can't find the right location or positioning for it. Any assistance would be greatly appreciated as this is the last part that needs to be placed correctly for the pistol to function properly. Thanks!
USP 45 part positioning
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