The Spark II is one of the first compact sights that HIVIZ developed and remains a top seller today. Its tiny but brilliant with an affordable price tag. Unlike the Spark III, the LitePipes are not interchangeable, so make sure you pick the color that best suits your needs. Fits most vent-ribbed shotguns with removeable front bead. Sight includes five screws in varying thread sizes to fit nearly any shotgun: 3-56"; 5-40"; 6-48"; 3mm x 0.5; 3mm x 0.6.
Specifications:

Type	Fiber Optic Bead
Frame Material	Steel
Frame Color	Black
Firearm Fit	Shotgun, Most w/Threaded Front Bead
Base Configuration
Style
Front Material	Fiber Optic
Rear Material
Front Color	Green
Rear Color
Rail Size
Windage Adjustment
Elevation Adjustment
Fiber Diameter
Firearm Type	Shotgun