This Cammenga Tritium Illuminated Military Lensatic Compass has been used by U.S. troops, foreign militaries, law enforcement, and special forces. A total of seven Tritium light sources provide readability in total darkness for 10 years without external power or the need to “recharge” using a flashlight. The compass features a sapphire bearing and the card is induction damped for fast settling with an accuracy of +/- 2 mils. The compass card has both the standard 0 – 360 degree scale, as well as the 0 – 64 Mil scale (one yard at 1,000 yards). The bezel rotates with detents every 3 degrees so you can change the heading reference a known amount without looking at the compass. The front sight has a magnifier to simultaneously view the magnetic heading when taking a sight. When unfolded flat, the marching compass has a straight edge with a standard 1:50,000 map scale. The folded compass measures 3 inches (7.6 cm) long, 2 1/4 inches (5.7 cm) wide, 1 1/8 inch (2.9 cm) thick, and weighs only 5.3 ounces (150 grams). This compass is protected by a durable waterproof cast aluminum case painted olive drab. The compass is brand new with fresh tritium and comes complete with a lanyard and a carrying pouch with rear belt clip, proudly made in the United States.