This is a late 70's Bill Davis PPC Custom Model 10 with full round barrel and undelug with Aristocrat sights. The trigger is smooth and polished, and the hammer was bobbed and polished as well. So the gun is primarily DA, although if you make an effort you can manually cock it. The DA trigger pull is a ridiculous 3.5lb, and to say it's a tack driver is an understatement. We bought this from a friend of mine who used to be a NAPA police officer, and competed in PPC matches. The S&W itself is a M10-7.