This is a Truglo Sight known as the Tru-Bead, model TG949D.
The TRUGLO Tru-Bead Front Sight features an interchangeable locking clip design making it universal and will fit with any rib width. Simply select and mount the correct clip (included) that fits your shotgun's particular rib width" then secure the front sight over the clip. Then install the front sight by replacing the front bead with the enclosed threaded screw. The low profile dual color fiber optic sight is bright in low light shooting conditions and features all metal construction.
Features:
Fits any rib width
Replaces front bead
Dual color fiber optic red/green
Front sight includes different sized clips to eliminate twisting
Extremely low-profile
CNC-machined
Endorsed by Ducks Unlimited
