Nice when i looked at Burris's website I didn't see that for some reason. I dont need the speed bead mount for this shotgun... thanks.Yes it is. In fact, Burris offers specific mounts for shotguns. All of three seconds with google...
http://www.burrisoptics.com/speedbead.html
TDC
i've run my ff on a 590a1 and a ksg with zero issues. Check out p&d for the fastfire ii. I believe tdc wasn't trying to mention the spread bead optic mount in particular but to show they make 12 ga shotgun specific mounts meaning they obviously are sd to handle 12ga power
I've had one on a 590 for about 2years. Just moved to a 930.
Seems to be holding up fine. I zero for 50yds with S&B reduced
recoil slugs and it puts me on at 20yds with 00 buck. Worked
out pretty much perfectly. Good optic for a shotgun. Prefer it to
the Micro I had on there. Only thing I'd like to see is manual
intensity adjustment. Fine in daylight, but I find it a bit bright
at dusk/dawn.