Machined from super alloy steel that is specially hardened and heat treated, Aftec extractors use long lasting coil springs to provide consistent and reliable performance for competition and self-defense 1911/2011 Style Pistols. No-fail extractor operates with long-lasting coil springs for increased service life; provides enhanced, reliable performance for self-defense and competitor shooters. Machined from super strong, alloy steel; specially hardened and heat treated to last indefinitly. Installs easily in Series 70 1911 Autos without slide modifications. Note: Extractor will not function with series 80 pistols.