This is a Barrett Ring, model 13324.
Unlike traditional scope rings which require careful attention be paid to maintaining equal gap between the upper and lower ring halves" Barrett's ZERO-GAP technology eliminates this tedious process. Simply tighten the cap on the indicated side" verify reticule alignment" tighten the remaining side" and fire away. The end result is a perfect fit between scope and mount that will withstand even the heaviest recoiling rifles. Machined from 7075-T5 aluminum and with MIL-SPEC Type III anodized finish.
Features:
7077 T-6 Aluminum construction
Hard anodized black finish
Perfect fit between scope and mount