The BrigTac pictured below was purchased without an action tune and came with a 9/4.5 lb trigger pull.
I purchased this CenTac with the action tune and it was much smoother and lighter at 8/3.5 lbs.
This 92FS has a Langdon Trigger Job in a Bag with a 14lb hammer spring and is essentially identical to the CenTac with Wilson Trigger job.