This gun, first off, is fantastic. It shoots probably 60 ft. (slugs, not shotgun shells), feels great, and is nice and hefty. It has some similarities to Seleziona's AA-12 (see here) but mine is mostly out of my head. Mine is quite a bit more accurate than his was, considering he had no fake barrel, his sights were..weird, and his had no trigger guard (which is something I have noticed in many of his guns). But, anyhoo, lets move on to pros and cons...
BlackShadow12: SWAT 556 (his drum mag)
Good range: 60 ft.
Great looks (just compare it with the pics of the real thing)
Nice 'n hefty
Has fake barrel
Sights work nicely but...
Gun is comfortable to hold
Has fake CH (Charging Handle)
Handle is comfortable
Has GREAT details, like the bump on the trigger guard, and has triangular-like handle guard
About the right length
Has drum mag
Sights are not entirely right
Charging handle could be better
Drum mag is not tilted...
All and all this gun is pretty cool (IMO), so tell me what you think. =D
-The Red Book of Westmarch