Browning scope rings are machined from aircraft grade alloy, giving you a precision, lightweight, high-strength optic mounting solution for your hunting rifle. These ultra-rigid, vertically split rings use oversized hardware for extra strength and ease of installation. Low, Medium and High height rings are available for both 1" and 30mm diameter scopes. Compatible with two-piece scope bases for A-Bolt, BAR and BLR and X-Lock bases for X-Bolt rifles. These scope rings require Browning's two-piece bases and are not compatible with a Picatinny-style or Weaver-style rail.