I am very cautious when ordering from CDNN unless its a name brand item I am certain is not a knock off. Sometimes a sale will result in a few bargains from CDNN but "their mags" are not on my radar. CDNN has really stung me on shipping costs so watch that aspect of dealing with them. As to mags , heck I got Wilson ,McCormick, Brown , Colt( as in real Colt) mags and problematic performance in some 1911 with them and flawless operation in other 1911. The only mags I buy that work in all my fleet (or swarm) of 1911 pistols is Mec Gar.