Jeffrey, yes Sir they certainly are. I use them without issue on my two Regards. They are just as reliable as the factory magazine so no worries. I also use these for home defense as well : budsgunshop.com/product_info.php/products_id/77310/beretta+c89282+92fs%2fcx4+magazine+30rd+9mm+blued+steel -- Cheers and stay safe!

Yes, this is a Berreta 92 clone and will work with Beretta 92 Mags.
"
The Regard 92 grip is the same size as the Beretta 92, but with finger grooves on the front and vertical serrations on the back to help you get a grip in extreme conditions. Additionally, the left-side safety lever has been slightly enlarged to aid in manipulation, and the double action trigger pull is actually a little smoother than that of the original. Best of all, the Regard 92 is compatible with Beretta 92 magazines.

Most internal components are interchangeable with Beretta 92 parts
Compatible with Beretta 92 magazines"
Full specs here.
gunsinternational.com/guns-for-sale-online/pistols/eaa-pistols/eaa-girsan-regard-mc-9mm-4-9-quot--black-18-rds-390080.cfm?gun_id=101559457