FWIW my CSMC A-10 small frame straight grip measures just a skosh under 4 1/8 inches. Diamond shaped and a through bolt. Out of curiosity I also measured some other guns, all straight stock, through bolt 12 gauges. Ruger Gold label measured exactly the same as the twenty A-10, slightly less than 4 1/8" which somewhat surprised me that it was that thin. Definitely a rounder contour, however. Four different Superposed Superlights all measured just shy of 4 7/8". Again, that surprised me as they felt and they feel smaller than that to me. An A-10 also measured just slightly less than 4 7/8".
Last edited by btdtst; 02/08/13 07:15 PM.