Butler Creek Flip-Open Objective Scope Cover - 1.612/40.9mm MFG 30170 Size 17

The Butler Creek Flip-Open Objective Scope Cover in 1.612/40.9mm (Size 17, MFG 30170) delivers fast-access lens protection engineered for hunters and tactical shooters who demand uncompromised sight picture when the shot window closes. Custom-fit friction mounts anchor directly to your scope tube, creating a watertight and airtight seal that keeps dust, moisture, and debris away from your objective lens in the field—critical for maintaining zero and optical clarity in extreme weather.

The thumb-operated flip design opens instantly without removing your hand from the rifle, eliminating fumbling under pressure. Silent spring hinges operate without the audible snap of traditional clip-on caps, preserving your tactical advantage during hunts or precision shooting applications. The semi-O-ring seal mechanism maintains airtight contact even after repeated cycles, preventing lens fogging and optical degradation. At just 0.06 lbs, the cover adds negligible weight while the compact 2.75 × 1.65 × 4.9-inch profile maintains scope balance and doesn't interfere with your mounting system or cheek weld.

This size 17 configuration fits scope tubes with 1.612-inch / 40.9mm outer diameter, a dimension common across mid-range hunting and tactical optics. The friction-mount design eliminates the need for tools or permanent modifications to your scope, making it an accessory that moves between rifles without hassle. Whether running precision long-range setups, patrol rifles, or hunting platforms, the Butler Creek objective cover is the standard choice for operators and shooters who refuse optical compromises.