The Nightforce Ring Cap Bubble Levels replace the top half of the ring of the Nightforce UniMount, Direct Mount and standard rings. Available with an integral ADI mount (ADI sold separately) or as a top half of ring and bubble level only.
Promotional Codes are not applicable to Nightforce products.
Big Book Catalog, Issue:73, Page:287
Big Book Catalog, Issue:73, Page:375
Sinclair, Issue:5B, Page:212