The original SOPMOD Stock was created by the Crane division of the Naval Surface Warfare Center (NSWC) in Crane, Indiana to help better serve America’s premier warfighters. It improved upon the standard collapsible M4 (AR-15) stock by increasing the cheekweld surface area and included water resistant battery storage compartments. This improved stock was originally made available to Special Operations forces and has since trickled into other channels including the civilian market. Anyone who has used a SOPMOD stock can testify to its comfortable use and tight fitment on Mil-Spec diameter buffer tubes.
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