Manufacturing of SIG Sauer 9 x 19 mm Pistols

This article details the manufacturing processes and assembly of 9 x 19 mm calibre SIG Sauer duty, sporting and limited edition pistols produced at the factory in Eckernforde, Germany. The principal manufacturing focus for this paper is SIG Sauer barrel production, as two methods of rifling are utilized in their pistols; electrochemical rifling and cold hammer forged rifling. However, pistol slide and frame manufacturing is also discussed, as well as assembly, proofing and test firing of firearms before sale.