The Butler Creek ESC40 Element Scope Cover is a flip-up objective lens cap from Butler Creek's Element series, designed for rugged, all-weather protection of rifle scope objective lenses.
Key Features
- Size/Fit: Fits objective lenses in the 35-40mm range (multi-fit design with a stretchable rubber sleeve that accommodates slight variations in scope bell diameters).
- Modular Interchangeable Disks: Comes with three lens inserts:
- Black (opaque) disk — Minimizes direct sunlight and glare on the lens.
- Clear disk — Allows viewing the reticle through the closed cap in rainy or low-light conditions.
- Printable data (ballistic) disk — Customizable for windage and elevation "dope" specific to your caliber, load, and scope. Print a template (available from Butler Creek's site), fill in your ballistic info, and insert it for quick field reference.
- Construction: Durable polymer body with a ridged protective lid, stainless steel hardware, and a watertight/airtight seal when closed. Built to handle extreme heat, cold, abuse, and harsh weather.
- Flip Mechanism: Opens with a button press. The lid can flip to ~180° (upright for reading the data disk) or ~270° (folded back out of the way and locked open).
- Other Details: Black color, silent/quick operation for hunting/shooting scenarios, and part of a broader lineup with multiple objective and eyepiece sizes.
Who It's For
Hunters, precision shooters, or anyone wanting better-than-basic flip caps. The standout feature is the customizable ballistic data disk, which puts dope charts right on your scope for fast adjustments without digging for a phone or card. The multi-fit rubber sleeve makes it forgiving on many common scopes (e.g., certain Vortex, Leupold, or similar 35–40mm objective models), though measuring your exact bell diameter is recommended for the best fit.
