Extra wide oval opening below the scope allows fast, unrestricted
use of iron sights when you're too close to use a scope. All steel,
four screw top strap gives 210° surface contact for
recoil-proof strength. Integral aluminum base means lighter
weight. Front and rear mounts interchange for greater eye relief.
SPECS: 1" (2.5cm) I.D. Overall height approximately 2" (5.1cm).
3 oz. (85g) per pair. Aluminum lower half, steel cap and screws.
Satin blue or brushed stainless finish.
Catalog page 258