CAMMENGA is the exclusive manufacturer of the official U.S. Military Lensatic Compass, built to the demanding specification of MIL-PRF-10436N. Battle tested - shock, water, sand proof, and functional from -50F to +150F. Seven Tritium Micro Lights allow for navigation in low-light conditions. Equipped with a magnifying lens, sight wire, and dial graduations in both degrees and mils to ensure accurate readings. Copper induction damping system slows the rotation of the magnet without the use of liquids. Built to last with an aluminum frame and waterproof housing.