APA came out with new model ring. 30mm set is the same .75 height as previous but the rings are wider...a touch wider than Seekins. Previous APA 30mm lows weighed 3.5 oz, new 30mm lows weigh 4.4 oz. I put a pair on last week and they are very, very nice...and the price reflects it.

https://www.americanprecisionarms.com/collections/scope-rings/products/30mm-scope-rings-1