Replacement Optisight Lens #4 Replacement Optisight Lens #4 delivers a precise, ready-to-install OptiSight lens replacement designed for Donegan Optical optics. This 2X magnification lens is crafted from optical grade acrylic that pops in and out easily, enabling fast swaps with minimal downtime. The material is both durable and impact resistant, built to withstand daily field use. Designed by Donegan Optical, this OptiSight replacement lens offers a snug fit, clear imaging, and long-term reliability. Whether you are replacing a scratched lens or refreshing your setup, this replacement lens keeps performance sharp and consistent. This replacement lens is a versatile upgrade for field technicians, shooters, or hobbyists who rely on reliable optics. Its durable optical grade acrylic resists shattering and maintains color fidelity under changing temperatures. The 2X magnification assists with precise targeting, alignment, and close inspection, while the quick snap-in installation minimizes downtime during routine gear maintenance. 2X magnification for enhanced detail Optical grade acrylic for crystal-clear optics Durable, impact-resistant construction Quick, snap-in installation Compatible with OptiSight systems by Donegan Optical Keep your optics performing at their best—add the Replacement Optisight Lens #4 to your cart today.