The Zero Tech Optics THDMM21 Thrive HD 1x21mm x 15mm Multi Reticle Red Micro Reflex Sight is a compact, lightweight red dot built for fast, intuitive target acquisition. Its slim housing and fully multicoated lens provide a clear, bright aiming window, while the shake-awake technology helps preserve battery life for extended use.

This micro reflex sight is well suited for handgun or rifle applications where a low-profile optic is preferred, from range practice and training to competition or everyday carry setups. The multi-reticle red dot system lets shooters tailor the sight picture to their preference, supporting quick follow-up shots and confident alignment. Backed by Zero Tech’s focus on practical innovation and dependable optics, the Thrive HD delivers a refined sighting solution for modern shooters.

Key Features:

• Manufacturer: Zero Tech Optics
• Model: THDMM21 Thrive HD Micro Reflex Sight
• Magnification: 1x
• Objective Lens Size: 21mm x 15mm
• Reticle: Multi Reticle Red Micro Reflex Sight, red illumination
• Battery Life: 50,000 hours (CR2032)
• Mount Type: RMSc footprint
• Color: Black
• Proofs: Fog, shock, and waterproof construction
• Included Accessories: Rubber protective cover, microfiber lens cloth, hex keys, three sets of mounting screws
• Weight: 19 grams (with battery)