Lead & Steel Promethean LP-1 Duty Grade Red Dot Optic, Now With AuraWake! After years of product development & destructive testing, Lead & Steel is proud to bring you the Promethean LP-1. Combining cutting-edge material science & world-class manufacturing, the LP-1 is in a league of its own: CNC-machined 7075-T6 aluminum housing, hard-coat anodized to Type III MIL-A-8625. Protective 6061-T6 extruded aluminum "crumple" hood. Parallax-free LED, with unlimited eye relief. Large window for fast target acquisition (1.37" x 1.04"). Lower 1/3rd (1.57") height. Compatible with most lower 1/3rd magnifiers 0.5-MOA adjustment for windage & elevation. User-configurable circle/dot & red dot reticles (2-MOA dot, 65-MOA ring + dot, 65-MOA ring only). Powered by a single CR123A cell for 150,000 continuous runtime with 2-MOA dot reticle (Setting 5/10). Always on unless manually turned off; "set & forget" design. Seven daytime settings. NV capable, with three dedicated nighttime settings. IPX8 waterproof rating. Quick-Detach mount, returns to zero. Adaptable to 1913 rails. Lifetime warranty. Weighs 11.8 oz. without hood, 12.5 oz. with hood. Unit Size (LxWxH): 95mm x 57mm x 65mm