Duncan’s Gunworks

Duncan’s Gunworks, located at 1619 Grand Ave in San Marcos, CA, is a family-owned licensed firearms dealer and gunsmith established in 1949. The shop specializes in new, used, and collectible firearms including handguns, shotguns, and rifles, along with ammunition, optics, and hunting accessories, and offers expert gunsmithing services for repairs and custom modifications. Known for nearly 75 years of honest service and personalized attention to both novice and experienced gun owners, Duncan’s Gunworks remains committed to providing quality products and exceptional customer care in Southern California.