These replacement recoil springs are designed for Colt 1911 Commander Model pistols chambered in 45 ACP, enhancing reliability and extending service life up to 15,000 rounds.
The Dual Spring Recoil System™ includes both inner and outer springs that must be used with a dedicated guide rod and recoil spring plug.
They provide a softer recoil experience and are made of tempered spring steel, with the correct tension for 45 ACP ammunition.