The USMC M Plan APO 2X/0.055-2X0.055 is a military-grade magnifying lens designed by the United States Marine Corps. The lens, with a magnifying power of 2X and a focal length of 0.055 to 2X0.055, ensures precision and clarity in various military applications. Crafted by the reputable brand USMC, this lens is a high-quality and reliable tool for enhancing visibility and accuracy in critical situations.