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DISCOVERYOPT®

DISCOVERYOPT ED-PRS GENⅡ 4-20X52SFIR FFP-MRAD-Z/L Diameter:34MM Optics Scope

DISCOVERYOPT ED-PRS GENⅡ 4-20X52SFIR FFP-MRAD-Z/L Diameter:34MM Optics Scope

// TAGS
ED FFP HPVO Long Range MRAD Precision PRS Range
$289.99 USD
$0.00 USD $289.99 USD
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Scope
// POLICY
Product Guarantee & Shipping Policy

🚀 Time: 10-15 business days for global destinations.

We have facilities in the USA, UK, EU, and China. Your order is dispatched from the facility nearest to you.

Lifetime Warranty: XED, ED, HD, and LHD series products.

3-Year Warranty: HT, HS, WG, MS series and Thermal devices.

Return or exchange within 30 days of delivery if it meets our return criteria.
View full details
// TECHNICAL SPECIFICATIONS

ED-PRS GENⅡ 4-20X52

Model Name ED-PRS GENⅡ 4-20X52
Magnification 4-20X
Focal Plane FFP(First)
OBJECTIVE 52MM
Tube Diameter 34MM
Iluminated Red, 6 Brightness Settings
Length 14.8in(375mm)
Weight 42.0 oz(1190g)
Click Value 0.1 MRAD
Turrets and Functions Locking turrets
Elevation Adj. Range 35 MRAD
Windage Adj. Range 17 MRAD
FOV 30.6FT(9.3m)-6.1FT(1.9m)/100YDS
Exit Pupil 13.3-2.6MM
Eye Relief 3.4 in(8.7cm)-3.3 in(8.5cm)
Parallax 20-∞ YDS
Recoil Rating .50 BMG
Fog Proof Nitrogen Purged
Waterproof IP67
Battery CR2032
// RETICLE SIMULATOR
Visual Field Preview
Drag the slider to experience how the reticle changes with magnification.
Magnification
4-20X
FFP(First)
ELEVATION ADJ. RANGE
35 MRAD
MRAD Reticle
FFP · MRAD
--×
-- × MAG
--× — --×
FFP · Reticle
Field of View
--°
Exit Pupil
--mm
Twilight Factor
--
FFP Front Focal Plane: Reticle scales with target — subtensions remain accurate at all magnifications.
Objective
52MM
20-∞ YDS
WINDAGE ADJ. RANGE
17 MRAD
// MOUNTING ASSISTANT
Ring Height Calculator
Select Firearm Platform and Objective Diameter · The System Automatically Calculates Clearance and Recommends the Optimal Mount Height
// 01 · SELECT RIFLE PLATFORM
// 02 · SELECT OBJECTIVE DIAMETER
// 03 · CLEARANCE RESULT
Scope Center → Bore Axis (estimated)
-- "
Select platform and objective
--
// 04 · RING RECOMMENDATIONS
// INSTALLATION NOTES
01 Use a torque wrench. Recommended ring screw torque is 15–18 in-lbs to prevent tube damage.
02 Before zeroing, ensure all screws are tightened in a cross pattern for even clamping force.
03 34mm tube requires 34mm rings. Do not mix with 30mm ring models.
MOUNT CALC ONLINE · ED-PRS GENⅡ 4-20X52 TUBE: 34mm · OBJ: 52mm DISCOVERYOPT © 2026

// VIDEO TUTORIALS

Videos

DISCOVERYOPT ED-PRS 4-20X52SFIR FFP Rifle Scopes

"Explore the DISCOVERYOPT ED-PRS 4-20X52SFIR FFP Rifle Scope, built for precision with a first focal plane reticle and 4-20x magnification."
DISCOVERYOPT ED-PRS 4-20X52SFIR FFP Rifle Scopes
01

DISCOVERYOPT ED-PRS 4-20X52SFIR FFP Rifle Scopes

"Explore the DISCOVERYOPT ED-PRS 4-20X52SFIR FFP Rifle Scope, built for precision with a first focal plane reticle and 4-20x magnification."

Less Power Better Performance? Discovery ED-PRS 4-20x52
02

Less Power Better Performance? Discovery ED-PRS 4-20x52

"Is less power better? Find out with the Discovery ED-PRS 4-20x52 scope, designed for superior performance and precision."

// WHAT'S IN THE BOX

PACKAGE CONTENTS

  • Scope

    Scope

    ×1

  • Spec Card

    Spec Card

    ×1

  • User Manual

    User Manual

    ×1

  • Scope Sunshade

    Scope Sunshade

    ×1

  • Lens Cleaning Cloth

    Lens Cleaning Cloth

    ×1

  • Scope Coin

    Scope Coin

    ×1

  • Cleaning Pen

    Cleaning Pen

    ×1

  • No Scope Rings

    No Scope Rings

    ×1

  • Warranty Card &QC Card

    Warranty Card &QC Card

    ×1

  • Lens Cap

    Lens Cap

    ×1

// COMMON QUESTIONS

Got Questions?

We've gathered the most common questions from our customers. If you need anything else, our support team is always here.

We provide a Lifetime Full Coverage Warranty for selected products. If your product breaks or malfunctions, we will repair or replace it free of charge.

No registration or receipt is required. Your Discoveryopt product is automatically covered.

XED,ED,HD, andLHDseries are covered for life.

LHT,HT,HS,WG,MSseries, and thermal imaging devices have a 3-year warranty.

No, accessories are excluded. However, you can return them within 30 days of purchase for free.

Free repair or replacement if the product breaks or malfunctions. If it cannot be repaired, we will replace it with a new product of equal or better performance.

Loss, theft, intentional damage, and cosmetic damage that does not affect performance.

Simply contact our support team by email. No receipt is required.

In most cases, customers pay for shipping to our service center, and Discoveryopt covers the cost of returning the repaired or replaced product.

Processing times may vary, but we aim to handle all warranty claims as quickly as possible.

You can either find "Chat" in the lower left corner of the website to communicate directly with us or email us at 📧support@discoveryopt.com.

Our goal is to ensure you have a product that meets your needs. If you’re not satisfied, we will work with you until the issue is resolved.


Can't find what you're looking for? Our technical support team is ready to help.

Contact Support

LIFETIME WARRANTY

Traditional optics: lifetime or 3-year warranty.

CUSTOMER SUPPORT

Email: support@discoveryopt.com

30-DAY RETURNS

Hassle-free returns within 30days.

FAST SHIPPING

Ships via in 3-10 businessdays with tracking.