tokens: The MPi-K and MPi-KS were derived from the original AK-47 and AKS , the MPi-KM , MPi-KMS-72 and MPi-KMS-K were derived from the AKM and AKMS , and the MPi-AK-74N , MPi-AKS-74N , and MPi-AKS-74NK , were derived from the AK-74 and AKS-74 .