The small defensive revolver is a compromise. In carrying one I have compromised some benefits of a larger gun, like capacity, ease of use. I have also sacrificed some practical accuracy that a larger revolver or pistol would afford. When my 640 Pro refused to shoot to point-of-aim with any load I tried, I decided this was not a compromise I could live with – I don’t want to have to rely on Kentucky windage when fractions of a second really count. So, I resorted to what those of us with non-adjustable sights sometimes have to. If you find yourself in this situation, you may find yourself filing your revolver’s front sight.
When I initally pulled my 640 Pro Series out of the box I was in love. That feeling only lasted until the first time I pulled the trigger. Even though this is a Pro Series gun, the trigger was abysmal (read: about average for a J-Frame). Attempting to test its weight on my Lyman trigger pull gauge was futile. I received the dreaded “overload” message; the trigger pull exceeded the gauge’s 12-lb capacity. Needing badly to lighten it, I purchased the Apex Duty-Carry Spring Kit from Apex Tactical Specialties.