LOK Sig Sauer P320 AXG | SXG GridLOK Grips and Backstrap Combo - AluminumWorks with Sig Sauer P320 AXG SXG grip module Backstrap fitment: AXG frames vary and occasionally require fitting. We recommend having a knowledgeable gunsmith modify it if needed. This AXG aluminum combo is CNC machined from solid 6061 Aluminum, anodized several colors, and features our aggressive GridLOK texture for increased performance and stability. The palm swell grips are slightly thicker than stock grips with an ergonomic curve Total Thickness