; . (b) Conforming amendment Section 922(c)(1) of such title is amended by striking in the case of any firearm and all that follows through eighteen years or more of age and inserting (1) in the case of a semiautomatic centerfire rifle or semiautomatic centerfire shotgun that has, or has the capacity to accept, an ammunition feeding device with a capacity exceeding 5 rounds, I am at least 21 years of age or a qualified individual (as defined in section 921(a)(30) of title 18, United States Code), (2) in the case of a firearm other than a shotgun, a rifle, or such a semiautomatic centerfire rifle or semiautomatic centerfire shotgun, I am at least 21 years of age, or (3) in the case of any other shotgun or rifle, I am at least 18 years of age. . (c) Qualified individual defined Section 921(a) of such title is amended by adding at the end the following: (38) The term qualified individual means— (A) a member of the Armed Forces on active duty