Actually, you can determine the trigger pull weight yourself.
If you have a fishing scale up to about 15 lbs you can measure the trigger pull. Empty the gun and verify it's empty. Do it again. Put the gun butt-down on a flat surface against a fixed object or support to prevent rearward motion. Hook the fishing scale over the trigger and slowly pull backwards. You might have someone else read the scale off as you pull. As the hammer approaches release, move slowly so you can read the highest reading on the scale when the hammer falls. This method usually gets you within 1/4 lb of the trigger pull.