These are the highest quality matched scope rings you can put on your rifle. Precisely CNC machined to the tightest tolerances so lapping is not required. These rings are made from 7075 aluminum to save weight and are hard anodized to maintain strength and rigidity. The cross bolts and nuts are machined from 4140 chromoly steel and hardened using a nitriding process.
Height is measured from top of base to center of ring.
Prices and weights are for a set of 2 rings.
Low 1" rings are .790"
Med 1" rings are .980"
Why do they have one bolt per side? Read about that Here
ATRS ring mounting instructions:
DO NOT LAP RINGS, it is not necessary.
DO NOT USE LOCTITE.
Mount rings on 1913 picatinny rail and torque cross bolt of rings to 55 inch lbs.
Once scope is mounted and eye relief is established, install top half of ring and torque 2 top screws to 21 inch lbs.
DO NOT OVER TORQUE RINGS.
How to Measure Ring Height