Butler Creek Flip-Open Eyepiece Scope Cover #13 39.9mm Black

The Butler Creek Flip-Open Eyepiece Scope Cover #13 is a black polymer lens cover that protects a riflescope's eyepiece from dust and moisture. It opens with a thumb push of a large button using a spring-loaded mechanism, so it can stay closed until a shot is ready.

The cover is sized for a 1.57 in (39.9 mm) eyepiece tube. Its friction mount and semi O-ring anchor it to the tube and help seal out dust and moisture. To confirm fit, the manufacturer advises checking the scope's owner's manual or measuring the outside diameter with calipers and choosing the nearest size listed in its table, within .01 in under to .025 in over the measurement.

This is the #13 size. Cover numbers correspond to specific eyepiece diameters, so confirm the measurement before ordering.

• Fits: 1.57 in (39.9 mm) eyepiece tube
• Color: Black
• Material: Polymer
• Model: Flip-Open #13
• Mount: Friction mount with semi O-ring
• Opening: Spring-loaded push button