Great rings for lower calibers - Burris Standard 30mm Solid Steel Rifle Scope STD Rings - Black Matte

Since this system only actually prevents one ring from getting slid back over time by recoil, you should probably only get this setup if you have lower calibers, maybe 270 and lower. Otherwise, very sturdy and tough setup for my 243.
Pros: Nice sturdy tough quality rings.
Cons: System only handles recoil on one ring

This review was written in the old system and had content requirements that are different than reviews written today.