Tenebraex Vortex PST 2.5-10x32, Trijicon MRO Flip Cover 37MMFC-FCV offers best protection for your optic. It is made in compatibility with Vortex PST 2.5-10x32 and Trijicon MRO scopes. The black lens cover for the objective end of the scope easily flips up and out of the way at the time of action. It can be conveniently flipped back when not in use. The Tenebraex 37MMFC-FCV flip cover is lightweight, durable and extremely useful for rifle scope users.. Tenebraex Objective Flip Cover for Tactical Scopes 37MMFC-FCV