TruGlo Hd Sgt 12-20ga Red TG. Featuring an ultra-tough construction and a reduced fiber diameter the TruGlo Red Sight is built to last and will hold up to years of use. The TruGlo Sight For 12-20 Gauge Shotguns is an ultra-low profile design that ensures the least amount of interference with your barrel making it perfect for plain barrel shotguns. For an incredible way to make sure you are shooting with one of the best possible sights on the market choose the TruGlo Sight For 12-20 Gauge Shotguns. Specifications for TruGlo Hd Sgt 12-20ga Red: Manufacturer: TruGlo Condition: New Diameter: 0.078 in Features of TruGlo Home Defense Fiber Optic Universal Shotgun Sight: Designed for plain barrel shotguns. Easy installation. Extremely low profile. Ultra-tough construction. Fiber diameter is .078". Package Contents: TruGlo Hd Sgt 12-20ga Red The TruGlo Hd Sgt 12-20ga Red is a quality addition to the TruGlo lineup. For more great deals on Fiber Optic Shotgun Sights by TruGlo please browse our TruGlo Gun Parts page. TruGlo TG-TG92HA: Hd Sgt 12-20ga Red