If you want to turn your bird gun into the ultimate deer gun you need the TRUGLO Pro-Series. The TRUGLO Pro Series Slug Gun 8mm fiber optic, shotgun sight in designed ONLY to be installed on a shotgun barrel with a ventilated or solid rib design. Designed to mount to just about any 5/16" shotgun rib, the Pro-Series clamps solidly to the shotgun rib providing a full fiber optic sighting system.

Specifications and features:
TRUGLOs ultimate slug gun sights
All steel construction
Securely mounts to your rib without tape or magnets
Full windage and elevation adjustment
Front diameter is .029"
Rear diameter is .035"



Fits:
Benelli Legacy, M1 Field, Montefeltro, Super Black Eagle, Nova, Vinci
Browning Gold Light 10 and BPS
Ithaca 37
NEF Topper, Pardner, and Excell
Ruger Red Label
Stoeger 2000 and P-350
Savage Shotguns
Weatherby SA-08, PA-08