Can I put a short trigger in my Sig Pro?

Yes. The short trigger—short from front to rear—is designed to shorten the reach to the trigger face, and typically benefits those with shorter fingers. The Sig-Sauer product code for the Sig Pro short trigger is 34290306, and retails for $50.

Note that while the trigger pivot pin does not need to be replaced, its snapper sleeve that looks like a washer and is visible on the right side of the frame, does. The snapper sleeve's part number is 34290301. Sig-Sauer or a qualified gunsmith should perform this task.