Jack First Inc. is a family-owned supplier of replacement parts for vintage, obsolete, and hard-to-find firearms, serving customers since 1954. The company organizes its extensive online catalog by brand and firearm model, helping customers locate parts for a wide range of historic and older guns.

Its inventory covers pistols, revolvers, rifles, and shotguns from well-known manufacturers such as Remington, Winchester, Marlin, Smith & Wesson, Colt, Browning, and Beretta, along with many less common brands. The site also lists reloading dies, reference books, and merchandise, and provides a reference-book collection on USB drive. Customers can search the catalog, browse product categories, and create an account to shop online.

Jack First Inc. offers free shipping on online orders over $100 and provides a phone number for inquiries. With decades of experience and a broad selection spanning numerous firearm makers and models, the business focuses on helping owners find replacement parts for firearms that may no longer be supported through standard retail channels