Magpul MIAD/MOE Battery Storage Grip Core Internal core unit for the miad as well as the MOE, MOE+, and moe-k2 grips Designed to hold two (2) AA type batteries in a self-contained, water-resistant unit Included internal spacer provides rattle free storage of either (2) AAA or (2) n size batteries (commonly used for eotech sights) Rubber cap has two sides with marking to identify "spent" Batteries and can be opened with a push of the thumb Made in USA Internal core unit for the MIAD, MOE, and MOE+ Grip Designed to hold two (2) AA type batteries in a self contained waterproof unit Included internal space provides rattle free storage of either (2) AAA or (2) N size batteries Made in USA