The Zero Tech Optics THDM21G Thrive HD Green Dot Micro Reflex Sight delivers fast, intuitive aiming in a compact package built on the popular RMSc footprint. Its 3 MOA green dot, multi-layer AR coated lens, and shake-awake technology work together to provide a crisp aiming point and clear sight picture whenever you bring the pistol up.

This Thrive HD model is ideal for mounting on compact pistols or as an ultra-lightweight backup sight on other firearm platforms. With up to 150,000 hours of battery life, waterproof and shockproof construction, and adjustable brightness, it is well suited for range use, training, and everyday carry setups where reliability and simplicity matter. ZeroTech’s attention to optical clarity and rugged design makes this micro reflex a dependable choice for shooters who value practical performance.

Key Features:

• Manufacturer: ZeroTech
• Model: Thrive HD THDM21G
• Magnification: 1x
• Reticle: 3 MOA Green Dot
• Optic Coating: Multi-Layer AR
• Footprint: Shield RMSc
• Battery Life: Up To 150,000 Hours
• Proofs: Waterproof, Shockproof, Fog Proof
• Weight: 0.67 Oz (19 Grams)
• Shipping Weight: 0.365 Lb
• Objective Size: 21mm x 15mm