TruGlo Glo-Dot II Wing & Clay Shotgun Sights-Red/Front 12-20 Ga Plain Barrel TG. The GLO-DOT II simply snaps in place over your existing front bead-sight for perfect alignment to provide you with a bright easy to see aiming dot. Fast and easy. Specifications for TruGlo Glo-Dot II Universal Shotgun Sight: Manufacturer: TruGlo Front Blade Height: 0.078 in Color: Black Condition: New Front Material: Fiber Optic Gun Type: Shotgun Features of Truglo GLO DOT II Universal Shotgun Sight Designed for plain barrel shotguns Easy installation Extremely low profile Ultra-tough construction Fiber diameter is .078in Endorsed by Ducks Unlimited Package Contents: TruGlo Glo-Dot II Universal Shotgun Sight TruGlo TG-TG92A: Glo-Dot II Wing & Clay Shotgun Sights-Red/Front 12-20 Ga Plain Barrel