BLACKHAWK! - 70SW03BK - LOK-Down Swing Swivel Set - For 1" Slings - Fits Remington 7400 - Wood Screw Rare Base BLACKHAWK! Remington 7400 & Model Four Autoloader LOK-DOWN Swivel Set The BLACKHAWK! Remington 7400 & Model Four Autoloader LOK-DOWN Swivel Set is for 7400 & 4 autoloaders. Comes with forend adapter bolt base plus lumber screw back base. Offered because 1” Blued model. Features •LOK-DOWN Swivel Set •Fits Remington 7400 & Model Four autoloaders •Forend adapter bolt base •Wood screw rear base •One inch blued steel swivels