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Butler Creek Objective Flip up lens covers

Butler Creek Flip Open Rifle Scope Objective Lens Cover Size 43 - 58.7mm 2.310"

Fits obj of Nikko Diamond 2.5-10x50, Hawke Nite eye digi, Sidewinder 30 (50mm lens), Eclipse 30 50mm & Sport HD IR 50mm HK3016
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Butler Creek Flip Open Rifle Scope Objective Lens Cover Size 43 - 58.7mm 2.310"

Advert is for ONE Objective lens cover NOT a pair.
Butler Creeks legendary Flip-Open Scope Covers form an airtight seal against the elements, but silently hinge open at the touch of a finger.

This type is for the objective lens (AKA the "big end" of the scope) and features a large push button for quick spring loaded opening so you can keep your optics protected until the perfect shot presents itself.

Key Features:

  • Water-tight friction, anchors the cover to your scope
  • Airtight semi-o-ring keeps out dust and moisture
  • Performs from -40° to 120° F
  • Quiet opening design won't scare away game or viewing subjects.
  • Weighs less than an ounce!
  • Easily opens with touch of thumb
  • Suitable for left or right handed use

Measurement and fitting -
The millimetre/inch measure is that of the OUTSIDE of the objective and NOT the objective lens size.

Butler Creek size 43 = 58.7mm - 2.310"

Fitting -

  • There is a little bit of flexibility in sizing though too far either way may result in too tight or loose.
  • Too loose is not so bad, you can shim with tape. Too tight is not good though so please be very precise with your measures.

Known to fit:

Nikko Stirling Diamond 2.5-10x50


  • Nite Eye Digi - all 50mm objective models
  • Sidewinder 30 IR - all 50mm objective models
  • Eclipse 30 2.5-10x50
  • Sport HD IR 3-9x50 (Mil Dot IR) HK3016
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Brand Butler Creek
Code NW902
Weight 0.05kg
MPN 30400