Hiviz PM1002 Competition Fiber Optic Front Shotgun Sight

Fits Most Vent-Ribbed Shotguns With Removable Front Bead.
Sight Includes Five Screws In Varying Thread Sizes To Fit Nearly Any Shotgun: 3-56; 5-40; 6-48; 3Mm X .5; 3Mm X .6.
Litepipe Color: Green (4), Red (3), White (1)
Litepipe Shape: Round (4 Diameters)