The ”Charlie” model retains most features of the original SU-16 such as integrated bipod Picatinny rail and AR-15/M-16 magazine compatibility. The front sight is integrated into the gas block and uses an AR-15/M-16 style front sight post for elevation adjustments. The SU-16C has a true folding stock and can be fired with the stock folded. A reciprocating dust cover and a case deflecting operating handle are also integrated into the rifle. The medium weight barrel is 16” long and is threaded 1/2×28 TPI at the muzzle. Chrome lined bore and chamber are now standard.UPC: 640832000849