KWA BB Speed Loader 460 round M4 Style 197-91100 This BB Speed Loader holds and impressive 460 rounds, and resembles an M4 Magazine for easy mag pouch storage. Simply fill with BBs and inject them into your spring load and gas magazines. Includes a Gas mag Adapter, which stores conveniently in the loader. Hinged cover protects the feed nozzle when not in use. Impact Resistant ABS Construction, 460 round capacity. 6mm BBs only.