This video reviews the Magpul AMAG 21 SG9, an all-metal alloy magazine designed for the Sig Sauer P320 pistol. It offers an increased capacity of 21 rounds and features a durable stainless steel body with polymer sub-components. The design includes capacity indicator windows, a high-visibility follower, and a textured, removable floor plate for identification and maintenance, showcasing Magpul's expansion into metal magazine offerings.
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