1911 Commander Spring Guide. GI format spring guide with beveled head to prevent damage to lower lugs of barrel. Heavily tumbled to remove sharp edges. Stainless steel, natural finish. Fits all 1911 Commander sized 1911s (4.25" barrel) and clones in all calibers, including Springfield Prodigy and Emissary 4.25" models. Not intended for use with Government or larger size 1911s.