The Vortex Strikefire II Objective Flip Cap is a hinged flip cap that protects your
Vortex Strikefire II Red Dot from dirt, dust, and debris.
Model #SF-OBC: Goes on the
objective end of your Vortex Strikefire II Red Dot.
Model #SF-OC: Goes on the
ocular end of your Vortex Strikefire II Red Dot.