They all came from Inrange. The first one is an SLR 105 that was unbanned and added Russian side folding stock for AK-74M clone. Second, SLR-105 A1 that was converted to an AK105. Troy installed 105 front end I bought from K-var. The booster on the rifle came with it. I haven't decided if I'm going to replace it with a replica. The last one is the SERIII.