pepper35, like an idiot, as I was typing the instructions for mounting the front site below, I realized that I have XS sites on my Marlin but I bought
Trijicon Night Sites for my 870.
Please ignore my previous post but if you don't mind, I'd like to post the instructions that I typed below. Perhaps someone else is thinking of installing Trijicon Night Sights. The front bead needs to be removed in order to install the Trijicon front site.
"Front Site Installation -
Remove bead from barrel. Debur edges of bead sight platform and check for new sight fit. Note: (Additional metal may need to be removed from both sides of bead site platform to insure new sight fit). Degrease last 4" of barrel and bottom ONLY of new sight by soaking in clean MEK solvent for 30 minutes and allow to dry. Note: (For blued or plated barrels, prior to degreasing, place new sight in position over bead sight platform and trace outline with pencil. With small file, remove finish inside trace area to insure proper adhesive bond). Remove clip from adhesive pak and mix contents thoroughly by gently kneading the gray and white material together until color is uniform. Then liberally coat underside of new sight and place it over bead site platform. Note: (End of new sight should be positioned approximately 1/16" from end of barrel). Clamp new sight in place using a small c-clamp or padded vice grip pliers. Remove excess adhesive, which has been squeezed from under new site. Note: (After this has been done, using clean rag dampened with MEK solvent, wipe down end of barrel to remove any remaining adhesive). Allow adhesive to cure for 24 hours at room temperature before removing clamp and using firearm."
Sir Aardvark, thanks for setting me straight and my apologies for any confusion that I may have caused.