I have never been a big pistol guy so need some help with this. I got a ber model 92 fs off of a buddy at work it has a front rail built in to the bottom of the frame. Is this something uncommon for this gun because i went to get a fobus for it and they had to order it because the (gun shop) had never seen one with the rail. plus i must say since then i have been looking and not seen any others with it either? If you need to see it pics are in my album. Thanks