The Universal Home Defense Shotgun Front Sight is designed for plain barreled 12 & 20 gauge shotguns without rib. It features an extremely low profile, ultra-tough construction, and a fiber diameter of 0.078".
Specifications:

Type
Frame Material	CNC Machined Steel
Frame Color	Black
Firearm Fit	Shotgun
Base Configuration
Style	Fiber Optic Front Sight
Front Material	Fiber Optic
Rear Material
Front Color	Green/Fiber Optic
Rear Color
Rail Size
Windage Adjustment
Elevation Adjustment
Fiber Diameter	.078"
Firearm Type