This review covers the FAB Defense M4 Survival Stock (GL-MAG) and AGR-43 Pistol Grip for the AR-15 platform. The GL-MAG integrates a 10-round magazine well, adding weight but improving rear balance, while the AGR-43 offers enhanced ergonomics with multiple textures and storage. Installation is demonstrated, and range performance highlights the stock's intuitive magazine changes and secure shoulder weld.
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