The EvolutionGear OGL features an extremely clean VCSEL IR illuminator providing consistent illumination with clean no halo or artifact. We have thoroughly tested this unit for durability and zero retention across multiple platforms and round counts. 308 / AR-10: Approximately ½ MOA of initial zero shift within the first 50 rounds, attributed to internal spring settling. Following this initial settling period, the unit maintained zero through 500 rounds of. Approximately ½ MOA of initial shift during the first 200 rounds. After the initial settling period, the unit. Maintained zero through a total of 1,200 rounds across FRT and semi-automatic fire. Consistent zero retention after the initial settling period on the tested platforms. This OGL is guaranteed to hold zero on. 308 semi-auto and 5.56 FRT/semi-auto platforms, providing confidence in its durability and performance. Test results are based on our internal testing and may vary depending on firearm, ammunition, mounting system, environmental conditions, and other factors. CNC machined 6061 aluminum housing. US-imported IR modules with VCSEL IR illuminator. Ergonomic IR illumination adjustment lever. Functional IR illuminator diffuser cap included. Fully PCB potted and epoxy sealed. Adjustable IR illuminator with clean illumination and a wide adjustment range. Hard-anodized finish available in Black or FDE. Designed to maintain zero under recoil from. 308 semi-auto and 5.56 FRT or Auto. Single Crane plug included. Co-alignment precision:? 1 MOA. IR wavelength: 850 nm. IR laser power: 0.6mW/ 40mW. IR beam divergence: 0.5 mrad. Visible laser wavelength: 650 nm / 520 nm. Visible laser power: 4.5mW / 40mW. Visible beam divergence: 0.5 mrad. Type: VCSEL IR laser. Power: 10mW / 200mW High. Adjustable divergence: 15-150 mrad. Finish: Black / FDE. Connector: Crane plug & compatible with all crane switches. If you experience any issues with your order, please reach out to us before opening a formal return request so we can work with you to resolve the issue as quickly as possible. Water, dust, dirt, or other environmental damage. Normal wear and tear. Damage resulting from modifications or unauthorized repairs.