Caldwell AR-15 Mag Charger. This magazine charger by Caldwell accepts 50 loaded rounds directly from any common 50 round ammo manufacturer box or from aftermarket 50 round plastic storage boxes. Once filled with ammo insert any AR magazine into the Caldwell AR-15 Polycarbonate Magazine Charger. Next actuate the plunger back and forth loading 5 rounds per stroke as the spring loaded ammo carrier automatically advances aligning the next five rounds until magazine is fully loaded. The Caldwell AR-15 50 Round Mag Charger is made of durable Polycarbonate construction is compatible with .223 5.56 and .204 ammo. Specifications for Caldwell AR-15 Mag Charger: Manufacturer: Caldwell Color: Black Fabric/Material: Polycarbonate Gun Make: AR Platform Gun Model: AR-15 Condition: New Features of Caldwell AR-15 50 Round Mag Charger: Load AR magazines in just seconds Accepts 50 rounds of .223 5.56 or .204 loaded ammo Instant transfer system from ammo box directly to Mag Charger Loads 5 rounds per "stroke" with auto advance Compatible with all AR platform mags both mil spec and molded plastic Durable Polycarbonate construction Package Contents: Caldwell AR-15 Mag Charger Caldwell 397488: AR-15 Mag Charger