Designed for today's compact and subcompact pistols, the Crimson TraceA(R) RAD (Rapid Aiming Dot) provides superior sight acquisition and enhanced durability in a highly affordable package. The ambient light sensor adjusts the 3 MOA red dot's brightness to match light conditions, so you never have to fumble through settings to find the "right bright." And with a number of quality-of-life features like a bottom-accessible battery compartment and an integrated co-witness sight that gives you a backup targeting option, the RAD Micro is ready for daily carry. And it's all backed by the Crimson Trace Lifetime Protection Guaranteed Warranty. Ambient light sensor adjusts the reticle brightness, so you don't have to swap settings High-efficiency LED for years of use Up to 10,000 hrs. of battery life Aerospace-grade aluminum construction provides enhanced durability Industry-standard mounting interface and simple installation Integrated co-witness sight provides a back-up option Bottom-accessible battery compartment Designed for compact and subcompact pistols Backed by the Crimson Trace Lifetime Protection Guaranteed Warranty Order today!