The Vortex Sparc II Sight Battery Holder is a handy accessory for your red dot sight. It offers watertight, dustproof storage that allows you to always be prepared  with a back-up battery. It features a retaining cable that secures battery holder cap and prevents loss.

• Battery Holder for CR2032 (SPARC 2) with mount for Picatinny and cable
• Watertight,dustproof storage
• Retaining cable secures battery holder cap and prevents loss
• Quick access and mounting with a coin, tip of bullet or tool of a similar size or shape