I caught this tip from a guy who stand strongly by his SW9VE in a sea of Sigma haters. One of the largest complaints on the Sigma series handgun is that it has a trigger pull weight comparable to rebar; i.e. very heavy pull. Basically, he had found through the grapevine that he was able to slightly modify some spring orientations inside the sear to reduce the weight of the pull down to an estimated 5lb to 6lb pull from the what...12lb factory pull? So here it is, I'm performing this on my Sigma .40cal SW40VE, I must prefix this whole thing with an apology for terrible cellphone pics. I suggest doing a couple of dry pulls before and after so you can feel the difference. Step 1: Get yourself a Sigma, remove it from its holster, take out the mag. Step 2: Remove the Slide, set it aside. Step 3: Use a punch to push out the pin at the back of the frame, you can see it below pushed halfway out. Step 4: With the pin completely removed, slide the sear housing upward out of the frame. Step 5: As the sear housing slides up, pull the trigger to release pressure on it so it can slide free of the frame Step 6: You should now have the sear housing free, just this piece shown below. Step 7: Remove the ejector, it just pulls free. Pay attention to how it is oriented on the sear housing for re-assembly.