Vulcan Arms is shit...absolute shit.STAY AWAY! They used to be Hesse Arms and after they got a bad reputation for using soft junk metal in their guns(guns wore out in 2k rounds) and a 50 cal rifle blew up on a guy they shut down, settled out of court, changed their name, and reopened instead of producing a quality gun.
I have never shot a Bobcat so take this forwhat it is worth,
I have heard that Bobcat is hit or miss, that they are an offspin of Special weapons, who has a bad reputation for customer service and warranty and making weapons when they say they are.
I saw the bobcat arms clones too... i've been looking at some rifles from Atlantic Arms and I guess I might just buy a 9mm Bushmaster Carbine and slap a shorter barrel on it and a new handguard... it'll look somewhat H&K'ish.
When a gun blows up on a guy I get concerned....when an AK wears out completely in 2k rounds when its well cared for I worry...when I see that they tack weld their stamped recievers together I freak out.