not sure if it has a brand,,,it is set up for a swivel stud,,so i got a quick change adapter to go from stud to pic rail for it so it comes on and off pretty easy
i guess you could spend the money for a name if you wanted to,,,i wasnt sure i would like it so i went to ebay and picked one that had the swivel and the lever like the harris,,,think it was $20-25 bucks,,,it is a pretty good clone,,,and an adapter for the quick off for about $10,,,
you can probably find one for a pic rail quick change but i have other guns that i could use this on if i wanted too so it works for me
from a bench the 6-9 is pretty good,,,in the field you may want the next size up,,,,think it is 9-11 or 12,,,something like that,,,,this one is a little short prone on the ground,,,,but it is workable,,,if that was how i was going to use it all the time i would want the taller one
ocharry