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Ben, Trigger Pull is a crisp 4.5lbs average. Expect 4.2 to 4.10lb pull. It is 1.2lbs lighter than the Full Size model P320.

I believe it is reduced by a couple of pounds. I have installed two of those triggers on two of my Sigs in the past. It felt to be at about a 2 lb difference maybe a little less. It was my pleasure to give you my input.

Ben, Each gun is just a little different. Even though many posted trigger pull weights show the RX model 1 LB lighter you will have a hard time telling the difference from the great P320 full size model trigger. Both models will be between 4.5 to 5.5 lb pull weight.

OK... I have four 320s...all different models from different years (starting with a '15) All of these guns have virtually the SAME action, But yet from gun to gun they can all be a little different .. it's just the way they are. The flat trigger is said to give you more leverage against the "pull" than the curved trigger. Also the "it's said" the newer guns (late '19 to 2020) models have the newer "transfer bar" and have a better trigger pull. The trigger bar has more effect on felt trigger pull than the trigger its self. All I can say is that the 320F .45 I bought in Dec.'19 (BOD of Nov. '19) has the best out of the box trigger of any of my earlier models. Your mileage may very. You'll get a great gun anyway you go and you can tune the trigger as you go.