sentences:  While the American AR-15/M16 rifles are built in T70-74 aluminum, the Chinese Type CQ is built in T60-60 aluminum, used to allow the process of metal injection molding to be used instead of forging.According to the manufacturer's website, the Type CQ assault rifle can be equipped with an under-carried grenade launcher.Norinco manufactures several models of grenade launchers in different calibers, generally clones of the American M203 (known as the LG2-I and LG2-II) or to the Russian GP-25/GP-30 (known as the LG-1, seen mated to the QBZ-95 assault rifle), and a wide array of anti-riot underbarrel launchers.