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Questions & Answers
How do you change out the battery? Expert Answer

The Nikko Stirling Diamond 4-16x50mm Rifle Scope houses a CR2032 battery in the illumination dial/turret. Simply remove the cap of the turret to access the battery.

by Ethan, Gear Expert, June 21, 2023
Is this scope the one that has the red and green reticle? Expert Answer

Please email us at techsales@opticsplanet.com so we can further answer your question.

by Ben, Gear Expert, October 30, 2021
Customer Reviews
Helpful Positive Review
Awesome optic !!!!! by Ggg, February 21, 2019
I have had this optic for over two years and on 5 different guns (223, 260, 6.5, 6mm and ARs). It is very clear, I would say equal to a weaver 3-15 tactical. Very generous eye box, easy to use, good resolution. The turrets work well, I have shot from...
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31/32 found this helpful
Helpful Positive Review
scope 4-16×50 by mags, Verified Owner, March 26, 2025
Awesome clear glass . Will buy more of the brand.
1/1 found this helpful
Most Recent Reviews
Nikko Sterling scope by Tommy, Verified Owner, October 25, 2025
I got to shoot my rifle with scope on it and I love it. I've not hunted in 20 yrs. But I may have to start back. Thanks,and must add,great service,fast shipping. Will buy again
Most Recent Reviews
Powerful magnification,has it all. by Mdy, Verified Owner, July 29, 2025
Love the features of this scope. The diamond Nikko Stirling 4x16-50 is a great value.
Read All 4 Reviews
Reticle: Illuminated Hold Fast Tube Diameter: 30 mmFinish: Matte Color: Black Weight: 16.5 ozAdjustment Click Value: 0.25 MOAAdjustment Type: MOA Parallax: Parallax Free Illumination Type: LED

Code: 1YQ-RS-NDR41650-NDSI41650LRHF

MPN: NDSI41650LRHF

UPC: 9420001435310

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List: $343.73Save 49%
$174.99
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Nikko Stirling Diamond 4-16x50mm, 30mm Tube, Rifle Scope, Illuminated Hold Fast Reticle w/Sunshade, Matte Black, NDSI41650LRHF
TRYBE Optics Enhancer Scope Magnification Doubler, 2x40mm, 30 mm/1 inch Tube Mount, Black, ENHRS30
List: $643.72Save 58%$269.98
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Product Info for Nikko Stirling Diamond 4-16x50mm, 30mm Tube, Rifle Scope

The Diamond LR (Long Range), available in both a 4-16x50, 6-24x50 and 10-40x56 variations. Using premium grade lenses featuring the latestimage

Specifications for Nikko Stirling Diamond 4-16x50mm, 30mm Tube, Rifle Scope:

Manufacturer: Nikko Stirling
Objective Lens Diameter: 50 mm
Magnification: 4 - 16 x
Reticle: Illuminated Hold Fast
Tube Diameter: 30 mm
Finish: Matte
Field of View, Linear: 2.7 - 10.7 m at 100 m
Eye Relief: 4.5 in
Color: Black
Weight: 16.5 oz
Adjustment Click Value: 0.25 MOA
Length: 14.2 in
Adjustment Type: MOA
Parallax: Parallax Free
Illumination Type: LED
Fabric/Material: Aircraft Grade Aluminum
Lens Material: Glass
Optical Coating: Multi-Coated
Weather Resistance: Yes
Water Resistance Level: Waterproof
Shockproof: Yes
Fogproof: Yes
Magnification Type: Variable
Gun Type: Rifle
Last Chance: Yes

Features of Nikko Stirling Diamond 4-16x50mm, 30mm Tube, Rifle Scope

  • 30mm aircraft-grade aluminium, one-piece main tube
  • Glass-etched HOLDFAST reticle
  • Fully multi-coated lens
  • Microlux ETE GEN III glass coatings
  • Zero-stop turrets
  • 1/4 MOA turret adjustments
  • 4'' of eye relief
  • Side Parallax Adjustable from 10 Yards to ?
  • Dual-color red/green illumination settings
  • Supplied with 2 ballistic drop turrets
  • Nikko Stirlings RTZ (Return to Zero)
  • Optional side-wheel available

Package Contents:

  • Nikko Stirling Diamond 4-16x50mm, 30mm Tube, Rifle Scope
  • Lens Cover
  • Lens Cloth
  • Manual

Nikko Stirling Diamond 4-16x50mm, 30mm Tube, Rifle Scope Orderable Models

List of Orderable Models

  • Nikko Stirling Diamond 4-16x50mm, 30mm Tube, Rifle Scope, Illuminated Hold Fast Reticle w/Sunshade, Matte Black, NDSI41650LRHF , MPN: NDSI41650LRHF , UPC: 9420001435310 , Code: 1YQ-RS-NDR41650-NDSI41650LRHF
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