Yessir, they are replicas. I got mine from t-tiger on ASF but I'm afraid I got the last one. However, you can still get them from a few retailers online.
http://www.px-airsoft.com/showroom/model/T0002/templateProductDetails.do?ParentId=1214828800275¤tPage=1&editCurrentLanguage=1213907847692&webId=1213907847691&productId=1338781169675010439
http://www.px-airsoft.com/showroom/model/T0002/templateProductDetails.do?ParentId=1214828800275¤tPage=1&editCurrentLanguage=1213907847692&webId=1213907847691&productId=1342472164523002246