There should be a logo/emblem on the bottom of the floorplate that looks like an eagle with the initials SR. If it's not there then it's probably an aftermarket magazine...
Without the logo on the floorplate? All my AWB Ruger mags have the logo...
What's interesting is that my mags have 3 witness holes but I've found some pictures on the web of mags that are supposed to be Ruger mags but that have 4 witness holes like the ones in the picture...
I have to say that with the exception of the logo on the floorplates and the different witness hole count, they're a dead ringer for my Ruger AWB mags--down to the 9mm stamped on the side.
Whew!
JohnKSa, might it be possible that Ruger had more than one run of these magazines with different variations?
My P95DC shows a 1997 year of manufacture... supplied with two 10-rd magazines, both look
exactly like the photo include by the OP.
Same mag body, same four witness holes, same "9mm" stamped on it, same roll pin/rivet looking pin holding the huge plastic base on and
no Ruger emblem on the bottom of the magazine.