Accushot high profile 3rd generation weaver rings.
Sits high off of the rail to allow for large bell objective scopes.
Allows for better clearance of front sight when attaching directly to receiver rail.   

Nice product at a nice price.

Precision Machined from Aircraft-grade Aluminum Alloy with Anodized Black Matte Finish.
Friendly Hex Screws with Retention Features w/ Full Length Locking Plate to Guarantee Easy Installationand Secure Fit,
Thumbscrew type but also includes all hex wrenches for tightening .
Fits All Picatinny/Weaver Rails Perfect for the mount above or any application requiring Weaver Rings.

See-through design for compatibility with many open sights.