Butler Creek 30040 Flip-Open Scope Cover Objective Lens 27.80mm Slip On Polymer Black

The Butler Creek Flip-Open Scope Cover in Size 04 is a custom-fit objective lens protector for riflescopes with a 27.80mm objective tube diameter. The slip-on polymer cover creates a watertight, airtight seal that keeps moisture, dust and debris off your glass in the field, at the range or in storage.

Built from lightweight black polymer, the cover uses a silent spring-loaded hinge that flips open with one finger and won't spook game when you shoulder the rifle. It weighs less than an ounce and has been tested down to -40F, making it a reliable choice for hunters, tactical shooters and long-range competitors who need clear optics in any weather. Verify that Size 04 (27.80mm) matches your scope's objective dimension using Butler Creek's sizing chart before ordering.