Trijicon TA63 Scopecoat covers Trijicon 3.5x35 ACOG Gunsight. The Scopecoat Trijicon AVOG Gunsight Protective Cover is constructed of the highest quality neoprene laminated with nylon. Its simple design safeguards the Trijicon scope or sighting system from dings and scratches, dust, dirt, and moisture. Neoprene has a 5% moisture absorbency which takes moisture (condensation and sweating) away from the scope or sight and helps protect it from rust & corrosion. The nylon shields against the elements. Simply stretch both ends over your riflescope or red dot sight. The recommended fit is either "relaxed same length" or slightly stretched.