Night vision systems

Bowie, BOH ee or BOO ee, knife was a popular hunting tool and weapon of the American frontier. It consisted of a short handle with a hand guard and… See more » Shield was the chief means of personal protection in war from earliest times until the invention of firearms during the 1300's. Shields were… See more » Grenade is a small explosive bomb that may be thrown, or may be fired from a rifle. Fragmentation grenades contain a coil of notched square wire… See more »