Built on the same popular platform of the M-15A4 Carbine. This new carbine provides all the flexibility of a flattop top picatinny rail but now available in the worlds most available cartridge. The 7.62x39mm cartridge is the most readily available cartridge in the world; in fact the original AK-47 was built to use this cartridge. But finally enthusiasts of this cartridge won't have to settle for less than the best. A true ArmaLite carbine. The ArmaLite designed mid-length handguard and gas tube technology provides an optimal gas pulse to power the 16" system so reliability is never an issue.