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Quick Details

  • Place of Origin: Sichuan, China (Mainland)
  • Brand Name: Voking/OEM
  • Model Number: V5013SFIR
  • Type: Rifle Scope
  • MODEL: V5013SFIR(4-20X50SFIR)
  • POWER: 4X-20X
  • OBJECTIVE: 50mm
  • FOV@100YDS: 8.62m-1.72m
  • EXITPUPIL: 12.5mm-2.5mm
  • EYE RELIEF: 93.0mm-88.0mm
  • 1 CLICK@100YDS: 0.25MOA
  • TUBE DIA: 30mm
  • TUBE LENGTH: 337.8mm
  • OEM order: OK

Packaging & Delivery

Packaging Details Cartons.Detail dimension based on the product you need.
Delivery Time within 30 workdays after the payment


Product Description

Voking 4-20X50mm oem rifle scopes first focal plane cameras infrareds for hunting

Product Advantages:

   5x zoom range yields a wide field of view and powerful ranging capabilities.
   Matching turrets and reticles in MOA.
   Accurate and repeatable 1/4 MOA adjustments on this scope allow for fine-tuning.
   Side adjustable parallax lets you instantly adjust while maintaining your shooting position.
   First focal plane illuminated glass-etched reticle.
   30mm diameter main tube with black matte finish.
  One piece, aircraft-grade aluminum alloy construction.
  O-ring seals prevents moisture, dust and debris from penetrating.
  This scope provides you with the ability to capture prairie predators, elusive elk, or dangerous game.
  Nitrogen gas is purged to prevent internal fogging over a wide range of temperatures.


Voking 4-20X50mm oem rifle scopes first focal plane cameras infrareds for hunting

Technical Data 

Objective Lens Diameter50mm
Color/FinishBlack Matte
Eyepiece Diameter36.5mm
Eye Relief3.66inches-3.47inches
Exit Pupil Diameter12.5mm-2.5mm
Field of View (m@100m)8.62-1.72
Field of view (ft @100yd)28.28-5.64
MOA adjustment (one click)1/4"
Diopter Adjustment+2/-3
Tube Diameter30mm
Tube PieceSingle
Parallax Setting100yds
Windage Adjustment Range50MOA
Elevation Adjustment Range36MOA
 Maximum Recoil1200G's
Lens CoatingFully Multi-coated
Number of Lenses13pcs
Lens material/typeK,ZF,BaK
Waterproof (Y / N)YES
Fogproof (Y / N)YES
Shockproof (Y / N)YES
Ocular Focus (Y / N)YES
Side Focus (Y / N)YES
Windage & Elevation Lock(Y / N)NO
Reticle R2                           
Reticle Type (Etched / Wire)Etched
Focal Plane1st
Reticle ColorBlack/Red
Illuminated(Y / N)YES
Reticle Brightness Settings0-11
Battery TypeCR2032
Battery Life80-150 hours
Battery Voltage3V
Mount TypeWeaver
IP StandardIP66
Body material6061 Aluminum
Operating Temperature (°C/°F)-20 to 60 / -20 to 140
Storage Temperature (°C/°F)5 to 35 / 41 to 95
Internal Spring TypeSlice spring









Standard Package

This is our standard package for riflescope.

If you have your own package design requirements, we can offer you customized package.


Voking 4-20X50mm oem rifle scopes first focal plane cameras infrareds for hunting

Package Contents:

1 * Filp-up covers
1 * 30mm mount rings
1 * Lense cleaning cloth
1 * User's manual
1 * Warranty card
1 * Specification Sheet





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Why choose Voking?

Why choose Voking?

  • Nearly 35 years’ experience in the line of riflescope and accessories;
  • Located in Chengdu, China ensures a convenient transport net;
  • Whole factory area is over 20000 square meters;
  • Over 100 employs including optical engineer, oversea sales, resemble department etc.;
  • Supply ability of 3000 pieces per month ensures accurate delivery time;
  • OEM service is available with high quality and good reputation;
  • Support L/C, T/T, Paypal and other diverse and flexible payment methods.

What can Voking bring to you?

  • Owned factory.......................save 10% cost
  • No material profit....................save  7% cost
  • No distributor benefit...............save 10% cost
  • No high artificial cost..................save 10% cost

Choose Voking!!!

Absolutely not only help you save 37% cost.



Production Process



Contact Information

Need more information? Contact Ms. Summer Han



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