Trigger pull complaints - RISE Armament RA-140 Super Sporting Trigger

I own several (5) of these triggers. Every one consistently reads 4 lbs. on my gauge (close enough for Govt. work). Since the trigger is so consistent, I barely notice the 1/2 lb. difference.
The problem that some people are experiencing with heavier trigger pull MAY be due to excess tightening of the set screws at the bottom of the trigger housing. If these set screws are too tight, the trigger pull will increase. Check the instructions provided by the manufacturer.