Designed and optimized for modern compact and subcompact pistols, the RAD (Rapid Aiming Dot) Micro Pro combines lightning-fast target acquisition with superior durability and Shake to Wake technology-and wraps it all up in a surprisingly affordable package. The integrated Shake to Wake sensor brings the RAD Micro Pro to life with a simple draw motion, so there are no controls to fumble with in the heat of an engagement. The ambient light sensor adjusts the 3 MOA red dot's brightness to match light conditions, so you never have to scramble through settings to find the inchright bright. inch 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 Pro 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 Shake to Wake technology brings the unit to life with a simple draw motion 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!