The Long Action scope mounting base for the Remington Model BDL rifles that dominate both the law enforcement and military sniping arenas are designed to meet the demands and expectations of armed professionals. The dovetail on this mounting base was machined to military specifications. The recoil slots are machined to accept the wide recoil lugs found on sniper-quality rings. manufactured from 4140 billet steel, featured with a black manganese phosphate mil spec finish.