American Pistolsmiths Guild

Dedicated to Excellence in the Pistolsmithing Craft

Greg Derr

Shop Info

Web page editor and active member.

Contact Info

Derr Precision

PO Box 879
Marshfield, 02050


Guild History

Greg is president and owner of Derr Precision in Marshfield, Ma. He is an accomplished custom gunsmith and United States Champion Olympian.