1911 Spring Guide. Solid spring guide with beveled head to prevent damage to lower lugs of barrel. Head geometry and dimensions optimized for correct slide travel, even with common buffers installed. Heavily tumbled to remove sharp edges. Stainless steel, natural finish. Mfg: 10-8 Performance Llc Fits all Government Model sized 1911s and clones. Does not fit Commander or smaller size 1911s.