From APA's website:
When a sturdy, reliable mounting system is required without adding substantial weight, APA rings are the answer. Machined with hard anodized black aluminum bodies and titanium beta series crossbolts and jaws. This combination provides exceptional strength.
No doubt there are a lot of guys that do not know APA or their product line. These are quality rings, thought highly of by those on the tactical side of the shooting world. Don't have the name recoginition of outfits such as Badger or Seekins - yet.....
https://www.americanprecisionarms.com/products-page/custom-parts/rings/Kaiser Norton
