This guide details the customization and testing of a SIG Sauer P320RX, referred to as a 'Franken-Sig,' by expert firearms reviewer Justin Opinion. It covers the installation of aftermarket parts like Talon Grips and an Apex Flat Trigger, mounting a Romeo1 optic, and using an extended magazine. The process culminates in range testing, including specific drills, to evaluate the firearm's handling, accuracy, and the reliability of the optic after extensive use. Opinion highlights the importance of aftermarket support and provides insights based on hundreds of rounds fired.
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