Yes. Two separate times, and with two different guns. One was a Sig P220, the other was the Sig P220ST. The trigger return spring was the culprit in both incidents; snapped in half and left me with a real pricey boat anchor. This is why I always grit my teeth anytime I see Sig ads in the gun books, or hear somebody else singing the praises of Sig. "To hell and back reliability", my *#?!