Remington 870 Express Tactical Magpul FDE with Upgrades and Accessories from Remington 870 Forum
XS Remington 870 Pedestal Big Dot Tritium Sight
Tritium sights basically provide green or yellow sight lights on your shotgun that glow in the dark. They have been nicknamed “night sights” for this reason and get installed on the rear or front of your shotgun. Tritium is described as a radioactive isotope of hydrogen. The sights use tiny vials of tritium that are responsible for emitting its soft green glow. If you are in an area with low lighting or darkness then the tritium sights will allow you to see where you’re aiming.
XS Sight Systems Shotgun Big Dot Tritium Front Sight Review
The XS sight system fits the Remington Pedestal model with a stepped bottom. Also fits Remington shotgun barrels with a front sight pedestal, vent rib models with a flat bottom and ones with ventilated ribs. The sights are designed to fit over existing bead sights from .125 to .140-inch diameters. The sights come with an adhesive that is used to fill in the gaps and to secure the sight to the barrel. The adhesive must fully cure before the shotgun is handled.