The Hogue Cargo Management System comes with a battery cradle that can store 3 SureFire 123A 2 AA batteries or 4 2032 batteries. An extra cover is provided that can be used in place of the battery cradle to allow storage of other items. Fits inside our Hogue AR AK and SIG556 Monogrips. This is the same system that is available in our combined AR/AK grip with storage kits. Batteries Not Included.