Anangrypasta
Master
I don't think too many folks here have these, but figured I'd share anyways lol. Found out that Arex Delta magazine baseplates fit Steyr A2 magazines perfectly. The baseplate locks onto the Steyr's retainer plate differently than the Steyr base, but it audibly clicks into place and is solid. There's a small bit of material you'd want to remove from the Arex base so it fits more easily into the magwell, but still works fine as is. Hope this helps anyone with one of these guys!