Sig Sauer Barrel 45 ACP 5.75" Link/Pin/Bushing Threaded .578-28 1911 Carry Bbl-1911-45-Carry-TB SIG SAUER factory replacement pistol barrels are precision hammer forged to insure accuracy and barrel life. Each is specially heat-treated for toughness and durability.SIG SAUER factory replacement pistol barrels are precision hammer forged to insure accuracy and barrel life. Each is specially heat-treated for toughness and durability.
