Protect your holographic sight with the optical defense. Crafted from Polycarbonate, this precision CNC-machined lens protector delivers high-grade impact resistance without compromising sight clarity. German Bayer Material: Made from ultra-durable 2 mm Bayer polycarbonate for maximum impact strength. Extreme Impact Resistance: Lab-tested to withstand direct BB hits up to 160 m/s (525 FPS) at 10 mm range. 100% Precision CNC Machined: Engineered for a perfect, seamless fit on original EOTECH sights and replicas. Zero Optical Distortion: Ultra-clear finish provides 100% visual fidelity—identical to clear optical glass. Compatibility: EOTECH Series: 511, 512, 516, 517, 551, 552, 553, 556, 557, HHS1, HHS2, XPS2, XPS3, EXPS2, EXPS3, EOLAD Airsoft / Replicas: Compatible with most airsoft replica sights (Fitment on replicas may vary slightly by manufacturer; best precision fit on EOTECH optics).