Viridian Reactor G2 M&p Shield

The Viridian Reactor G2 M&P Shield is a compact green laser aiming system engineered specifically for compact carry pistols, delivering exceptional target acquisition in low-light environments where traditional sights reach their limits. Built by Viridian Weapon Technologies, this second-generation laser sight integrates seamlessly into the trigger guard architecture, maintaining the natural draw profile critical for concealed carry and rapid-response scenarios.

The Reactor G2 employs green laser technology operating in the 510–532nm wavelength range, producing a target dot approximately 50 times brighter than conventional red lasers across all lighting conditions. This visibility advantage translates directly to faster target recognition and improved accuracy during dynamic shooting events. The Gen 2 platform delivers extended battery life—up to 5 hours of continuous operation, representing a three-fold improvement over the original Reactor—using standard replaceable batteries. Dual operational modes (constant and strobe) provide tactical flexibility: constant mode for precise aiming and training, strobe mode for target designation and low-light environments. The device measures 4.5 x 2.25 x 5.75 inches and weighs 0.44 pounds, maintaining minimal footprint on compact pistol frames.

This laser sight addresses the needs of law enforcement personnel, armed security professionals, and civilian carry operators who require rapid target acquisition without sacrificing the low-profile ergonomics of compact platforms. The M&P Shield variant fits S&W M&P Shield frame geometries while the inside-the-waistband (IWB) holster integration ensures retention and consistent positioning during draw and re-holster cycles. Field testing confirms reliable operation across temperature extremes and extended patrol shifts, making the Reactor G2 a practical alternative to traditional iron sights or reflex optics for operators prioritizing simplicity and concealability over extended-range engagement capability.