Nikon Prostaff 3-9x40 Nikoplex Scope

Item No. 01820806721
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Product Description


The PROSTAFF line of riflescopes will help you get on target and stay on target, in virtually any conditions. The entire PROSTAFF riflescope series integrates Nikon’s fully multicoated optical system, Spring-Loaded instant Zero-Reset Turrets and Spot On optimized reticles. Whether you shoot with a rifle, shotgun or rimfire, you can rest easy knowing that Nikon will never cut corners on optics, ruggedness or precision. Compatible with Spot On Custom Turrets.

Nikon’s Nikoplex Reticle

A perfect choice for shooters wishing to have a clear field of view with a more traditional crosshair, the Nikoplex reticle allows shooters to utilize all that Nikon’s Spot On Ballistic Match Technology has to offer while maintaining one distinct aiming point on their reticle.

Nikoplex Reticle

Full Multilayer Coatings on All Glass Surfaces

Multiple Layers of Anti-Reflective Coating maximize light transmission, brightness and contrast for an extremely bright sight picture.

1-Inch Main Body Tube

Constructed of Aircraft-grade aluminum with Type-III hard anodizing surface finish for maximum strength-to-weight ratio and optimum ruggedness.

Precise Hand-turn 1/4-MOA Click Adjustments

Positive-1/4-inch click adjustments get you zeroed in quicker and maintain your setting even with heavy recoil. Versatile magnification range offers the flexibility needed for any type of hunting situation, from heavy timber to open prairie.

Waterproof, Fogproof, Shockproof

O-ring sealed to prevent moisture from entering body and nitrogen purged for total reliability against thermal shock. Shockproof construction shrugs off hard recoil and rugged use.

Lifetime Repair/Replacement

Excludes lost or stolen products and intentionally caused damage


  • Magnification: 2.5-10 x
  • Objective Diameter: 40 mm
  • Exit Pupil: 10-16 mm
  • Field of View: 9.9-40.4  ft@ 100 yds
  • Tube Diameter - Other: 1 in
  • Eye Relief: 4 in
  • Eyepiece Outside Diameter: 44 mm
  • Weight: 15.3  oz
  • Overall Length: 12.6  in
  • Adjustment Graduation - Other: 1/4 in
  • Max Internal Adjustment: 70  MOA
  • Parallax Setting - Other: 100 yds
  • Waterproof/Fogproof: Yes
  • Spot On Custom Turret: Yes
  • Matte Finish: Yes
  • Use: Centerfire Short/Mid Range
  • Reticle: BDC

Customer Reviews

4.7 / 5.0
10 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
Very impressed
I purchased the Prostaff 3-9x40 as a Christmas gift for my 8 year old’s .243 and could not be happier. It is extremely clear, does not fog up when the heavy breathing starts and it’s affordable.
December 27, 2018
Originally posted at
Good value
Great scope for the price! Very clear sight picture and easy to use.
December 22, 2018
Originally posted at
Great package ready to go.
Great product with everything I needed to get it mounted on my new rifle.
December 21, 2018
Originally posted at
This is my 5th Nikon riflescope to add to my collection. I have always been pleased with Nikon Optics quality and performance.
December 19, 2018
Originally posted at
The scope is excellent have had no problems very clear and just love how smooth the adjustments are . Just love everything about this scope.
November 14, 2018
Originally posted at
Good buy
It’s everything expected in a Nikon. Light drawing ability is excellent. Price is compatible. Only downfall was a slight blur at full magnification.
November 5, 2018
Originally posted at
Great scope for the price
This is my third Nikon Prostaff 3-9x40. This is a very good scope for the money it cost. It is very clear. The power selector ring is easy to use. The eyepiece adjustment is very user friendly.
October 30, 2018
Originally posted at
Love Nikon Scopes!!!
I've been a Vortex scope guy for years. Then I purchased a Savage Trophy Hunter that came with a low end Nikon scope. I couldn't believe how nice a "packaged" scope could be. It was clearer and brighter than my Vortex Crossfire II and Diamondback HP scopes. I have since changed all my scopes to Nikon.

This new Prostaff continues to amaze me. I still can't believe how crisp and clear a entry level scope is. Plus the turret clicks are so nice I'll never go back to Vortex or Bushnell.

Buy won't regret it.
October 27, 2018
Originally posted at
Great scope and value!
Very high quality scope fro the price compared to the competition. My favorite scope!
July 5, 2018
Originally posted at
Great scope
Very good value in an all around scope. I have used other scopes that do not have the clarity of Nikon and cost much more money
January 23, 2018
Originally posted at