Truglo Fat Bead, Universal Shotgun Sight, Matte Finish, Black Housing, Green Dot, Includes Thread Adapters for 6-48/3-56/2.6mm/5-40/3mm Threads TG-TG48UG
Specifications:

Type	Fiber Optic Bead
Frame Material	Steel
Frame Color	Black
Firearm Fit	Universal
Base Configuration	0.5"
Style
Front Material	Fiber Optic
Rear Material	N/A
Front Color	Green
Rear Color	N/A
Rail Size
Windage Adjustment
Elevation Adjustment
Fiber Diameter	.100"
Firearm Type	Shotgun