Zero Tech Optics Thrive HD Features The Zero Tech Optics Thrive HD centers on a multi reticle system that gives shooters the flexibility to pick the reticle best suited to a given scenario improving both initial target acquisition and re-engagement after recoil. A 21mm objective window provides a wide field of view for quick indexing while 10 brightness settings let the dot be tuned for everything from a dim indoor range to bright daylight. Shake awake technology keeps the sight powered down until motion is detected then brings it instantly back online conserving the CR2032 battery for a rated 50 000 hours of use. The housing is guaranteed waterproof shockproof and fog proof so the electronics keep working through recoil moisture and temperature swings that would compromise a lesser optic. At only 0.67 oz and 1.6 inches long the Thrive HD mounts to any Shield RMSc footprint slide cut or base without adding noticeable weight or bulk to the pistol. The multi coated lens improves light transmission for a clearer sight picture and the slim profile keeps the sight from snagging during holster presentation. It ships complete with a rubber protective cover a microfibre lens cleaning cloth hex keys for sight attachment and three sets of mounting screws giving the buyer everything needed to install and protect the optic out of the box. That combination of low weight a small footprint and a complete hardware kit makes the Thrive HD a practical upgrade for concealed carry pistols and competition guns alike available for sale at GrabAGun. Zero Tech Optics Thrive HD Specifications Manufacturer: Zero Tech Optics Model: Thrive HD Type: Red Dot Sight Magnification: 1x Objective: 21mm Reticle: Multi Reticle Mount Type: RMSc Footprint Brightness Settings: 10 Battery Size: CR2032 Battery Life: 50 000 hrs Length: 1.6 Height: 0.86 Width: 0.98 Weight: 0.67 oz Color: Black Proofs: Fog / Shock Proof / Waterproof Click Value: 1 MOA Available At: GrabAGun