Morbidity & mortality due to gun-related injuries constitut a major public health problem. Children are affected by the gun hazard as survivors of gun homicides, suicides, & unintentional injuries. Both toy guns & non-powder firearms are more dangerous than is generally recognized, & promote aggressive play. The possible developmental effects of gunplay in childhood are discussed & it is suggested that changes in childhood gunplay may help reduce the gun hazard. (LH)