Sig Sauer Parts Kits for Sale
Founded: 1976
HQ: Switzerland and Germany
SIG Sauer, Inc. of the United States established its Parts Kits footprint with factory Caliber X-Change Kits for the modular P250 in 2007 and broadened it in 2014 with the P320, with ongoing OEM support for P‑Series conversions and select rifle/PDW accessory kits. Built around SIG’s serialized fire-control unit, these kits bundle complete slide, barrel, and recoil assemblies with the correct magazines to enable plug-and-play caliber and size changes across its modular handguns.
Sig Sauer Parts Kits Auctions
2 active auctions ending soon









