AMMO BOOST FLOOR PLATE REMINGTON 700 LA Legacy Sports Remington 700 BDL Ammo Boost Floor Plate, Long Action. Upgrade your Remington 700 BDL long action rifle to accept detachable magazines with this drop-in replacement floor plate. Made from tough polymer, this floor plate assembly includes the magazine release and is designed for the Ammo Boost Advantage magazine. The floor plate will fit Remington 700 BDL long action rifles only. Made in the U.S.A.