Originally Posted by dragunovsks
I think it's an AA Arms AP-9, I did a google search and the first one that came up was the same gun, it had a little bit longer barrel but everything else was the same. It is on another forum as someone is or was trying to sell it.
AA Arms AP-9 Assault Pistol w/ Extras - LS1TECH
This one has a longer shrouded barrel with the front sight mounted further out but everything else is the same.
Every pic of an AP-9 that I've seen has the shrouded barrel, but the receiver/frame definetely matches that of an AP-9.
Classic Arms has these frames for sale: