The Caldwell 397488 AR Mag Charger for AR-15 Magazines streamlines ammo loading for AR-15 enthusiasts, making the process quick and hassle-free. This innovative device accommodates 50 rounds from standard and aftermarket boxes, ensuring optimal alignment and efficiency. Simply dump the ammunition, and the Mag Charger does the rest, automatically aligning each round. Loads Magazines in Seconds Durable Polycarbonate Construction Compatible with all AR Platform Mags Loads 5 Rounds per stroke with auto advance Accepts 50 rounds of .223, 5.56, .204, or .300 AAC Blackout Experience unparalleled ammo loading speed and efficiency with the Caldwell AR Mag Charger.