Trijicon RMR Type 2 3.25 MOA Adjustable LED Red Dot Sight

3.25 MOA ADJUSTABLE LED RMR: Features an automatic brightness mode and easy push buttons for eight adjustable brightness settings including 2 nv and 1 Super bright DEPENDABLE ELECTRONIC DESIGN: Ruggedized Battery contacts and electronics ensure performance and survivability in harsh environments UNIQUE PATENTED HOUSING SHAPE: Military-grade aluminum alloy forged housing shape diverts force of impact away from the lens, greatly increasing its durability. Extreme temperatures high or low will affect lithium battery performance Battery automatically adjusts aiming dot to ambient lighting conditions after 16.5 hours. Battery life is efficient when used at 21 degree celsius at setting 4 of 8. Bullet drop compensator not present