GKC reply


The LC9 is a true double action (DA). The hammer starts at half way back. The trigger pull causes the hammer to move fully rearward and then the hammer drops. The Sig Sauer P220 is a DA/SA, similar to a revolver. The hammer is exposed and can be pulled back for the single action. Or if the hammer is lowered the trigger pull will cock the hammer, like a revolver. Once the gun is fired the slide cocks the hammer and it operates as SA. You mention double strike. These guns are DA as the trigger pulls the hammer or striker back, similar as the Sig pulls the hammer back in DA. If the Sig did not fire the first time, by pulling the trigger again, it would re-cock the hammer and drop it again, for a double strike capability.

The terminology is simple. If the pull of the trigger does only one thing, drops the hammer/striker, it is SA. If the pull of the trigger does more than one thing, cocks the hammer/striker and then drops the hammer/striker, it is considered DA.

Bob