This is a Trijicon Scope Cover known as the ACOG, model AC11031.
This Objective Flip Cap is designed to stretch over the TA91 killFLASH. This matte black" non see through cover provides a snap-lock lid that prevents dust build up and blocks rain and snow accumulation when closed. When open the lid pivots 270 degree to lay parallel to the scope so it doesn't block the shooters view.
Features:
Matte black
Protects lenses
Requires TA91 killFlash
