Yes, look at the over travel screw. Back it off While testing to see how the sear releases. Hold the hammer back with your thumb as you depress the trigger and feel for resistance or a bump in the let off. Keep turning the screw until it releases cleanly and then lock tight it in place. If the lock tight bond is broken the screws can work their way out over time and prevent the sear from moving through it's full arc, which makes it basically force it's way past the hammer hooks without enough clearance to pass the half-####. It should be fine once you do this.