- Single transverse 123 battery to reduce sight length
- Shortened base only requires at most 2 3/4 inch of rail space compared to the 4 inch N battery sights
- Battery cap and latch are eliminated and replaced with a simple O-ring, tethered cap; better sealing is achieved
- Battery compartment is now separated from the base to allow it to hover over the delta ring of the rifle
- Average battery life at brightness level 12 is roughly 500-600 hours, 3X battery life of N cell sights
Eotech has done it again by making the best even better. Offering true 2 eyes open shooting, a transversly mounted lithium 123 battery, and 7 mm raised base offering iron sight access, the new Extreme-XPS (EXPS) features easy to adjust side buttons and an adjustable, locking, quick detach lever for easy attachment and removal.