This guide details the installation of Xtech Tactical Plus-Two magazine extensions for the Smith & Wesson M&P Shield, increasing capacity by two rounds. The process involves disassembling the factory magazine, replacing the spring, and installing the new base plate. The reviewer, Russell Fagin (Sinestro Rifleman), demonstrates the installation on both 7 and 8-round magazines and confirms reliable function through dry and live-fire testing, noting a nominal price point of $20 per extension.
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