The Luth-AR MBA-2K308 is a complete fixed rifle buttstock assembly kit designed specifically for .308/7.62 AR-10 lower receivers. This comprehensive kit includes everything needed to assemble an A2 rifle buffer system with rifle length configuration.Luth-AR MBA-2K308 Complete Stock KitFixed stock design for AR-10 platformIncludes MBA-2 buttstock in black finishA2 buttstock extension tube includedStandard buffer and .308/7.62 buffer springRifle length sizingLightweight and affordable complete solutionPerfect for AR-10 builders and shooters seeking a reliable fixed stock solution with all necessary buffer system components included in one complete kit.