Chip McCormick supplies the Shooting Star magazine to American's top 1911 manufactures for use as the factory standard in their handguns. Tolerances for Shooting Star magazines and components are 50% tighter than military specifications which in turn produces reliable function and long service life.CMC Products Classic Magazine 45ACP 8 Roundd Fits 1911 Includes Polymer Base Pad Stainless M-CL-45FS8-P