Butler Creek has taken the step to help protect your MSR Optics. The Sidewinder has a two axis rotation that allows it to rotate up and out of the way of night vision optics mounted in front of your aiming optic and then folds back and out of the way. This provides 100 percent unobstructed viewing. Built for heavy use and will work in a wide temperature range from Pests in the cold north to hogs at night in the south.
Specifications and Features:
Butler Creek Sidewinder Optic Cover 41601
Patented zero clearance design
Perfect for use in combination with Night Vision optics
Built for heavy use and wide temperature range
Aimpoint PRO/COMPM2 EYE Piece
And Other 30mm DIA. Optics