Got it on a GunBroker listing, which ended during the SuperBowl. Yea, crazy price I paid, but worth it to me due to the history...
S&W 10mm Mag 15 Round Authentic Magazine FBI ISSUE : Semi Auto Pistols at GunBroker.com
It feels just like a regular 9 rounder in regards to fit/function. Nothing jumps out at me with taking it apart, other than the yellow follower and longer spring. I upgraded all my magazines to the white follower, and might pick one up for this, but it looks to be good to go. There was a small amount of rust on the floorplate/lower part of the spring, but a little oil and rubbing got it looking ok.
There is an detent slightly higher than where the base would be on the standard magazines, to allow for the bevel on the magazine well. The detent is angled to lock it up... as it does not rock at all when inserted (loaded or empty).
No part numbers at all, with the exception of the ES on the front. But that is present in earlier standard magazines (I have some, but the ES1 was in the gun), as well. The ES1 marking is about when they started marking them "Accu-Guide," but I didn't check all of my ES1s to see if some were not marked.
I'm very happy I got the magazine, as it isn't something very common to come up for sale. Living in NJ, with a 15 round magazine limit, it is that much nicer for me to have. I don't know how many are in civilian ownership, but I might have seen two or three posted online before. Having it really makes me proud of my collection, as I didn't get a .40 conversion barrel (which I really wanted to mess around with). I like having unique stuff, and that definitely takes the cake.
S&W 10mm Mag 15 Round Authentic Magazine FBI ISSUE : Semi Auto Pistols at GunBroker.com





It feels just like a regular 9 rounder in regards to fit/function. Nothing jumps out at me with taking it apart, other than the yellow follower and longer spring. I upgraded all my magazines to the white follower, and might pick one up for this, but it looks to be good to go. There was a small amount of rust on the floorplate/lower part of the spring, but a little oil and rubbing got it looking ok.
There is an detent slightly higher than where the base would be on the standard magazines, to allow for the bevel on the magazine well. The detent is angled to lock it up... as it does not rock at all when inserted (loaded or empty).
No part numbers at all, with the exception of the ES on the front. But that is present in earlier standard magazines (I have some, but the ES1 was in the gun), as well. The ES1 marking is about when they started marking them "Accu-Guide," but I didn't check all of my ES1s to see if some were not marked.
I'm very happy I got the magazine, as it isn't something very common to come up for sale. Living in NJ, with a 15 round magazine limit, it is that much nicer for me to have. I don't know how many are in civilian ownership, but I might have seen two or three posted online before. Having it really makes me proud of my collection, as I didn't get a .40 conversion barrel (which I really wanted to mess around with). I like having unique stuff, and that definitely takes the cake.