I am not familiar with that weapon, but I googled it and from the looks of it it appears that it is a 1911 with a polymer frame? If that is the case, I know that Kimber used to make a model with a polymer frame. I google BUL M5 Commander and a bunch of stuff came up.
I hope this helps. I am not to versed with the 1911, as of yet, but I thought I would try to help out some.