I had one a long time ago and I don't remember but it may be an integral part of the slide as they were on early 92s. See if Numrich or Brownells has a schematic of the gun as this will show if it's a replaceable part.
Just for giggles, I went to Brownell's and here's the part for a 9mm:
(can't post the whole link for some reason. add "www." in front)
Last edited by NGIB; 03-24-2010 at 12:28 AM.