Browning's Integrated Scope Mount System unitizes the ring and base into a single, ultra-rigid unit. Machined from 7000 series aluminum alloy, they eliminate alignment problems and the possibility of a loose connection between the base and ring.
Specifications:

Type
Tube Diameter	30mm
Height	.500"
Size
Finish	Matte
Style	2 Piece
Material	Aluminum
Style Description
One or Two Piece
Adaptor Type
Mount Type	Browning-Style 2-Piece Base
Lock Type