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Maven CRS.3 - 4-20x50 FFP Scope
Maven CRS.3 - 4-20x50 FFP Scope
Maven CRS.3 - 4-20x50 FFP Scope
Maven CRS.3 - 4-20x50 FFP Scope
Maven CRS.3 - 4-20x50 FFP Scope
Maven CRS.3 - 4-20x50 FFP Scope
Maven CRS.3 - 4-20x50 FFP Scope
Maven CRS.3 - 4-20x50 FFP Scope
Maven CRS.3 - 4-20x50 FFP Scope

Award Winning Maven-Built Optics

Maven CRS.3 - 4-20x50 FFP Scope

Mid-Range Model

Unlimited Lifetime Warranty

4-20x magnification ensures versatile mid- to long-range shooting.

Illuminated reticle clarifies low-light hunting precision.

Precise turrets enable accurate shot adjustments.
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Description

The CRS.3 brings C Series clarity, durability, and affordability to an all-purpose first focal plane hunting scope that fits the bill for mid- to long-range shooting and hunting. With proven performance in durability, accuracy, and reliability, the CRS Series redefines affordable optics.

Featuring a broad 4-20x magnification range for versatile shooting capabilities, precise dialable elevation and windage turrets for accurate adjustments, an illuminated reticle to ensure visibility in low-light conditions, side parallax adjustment for enhanced clarity/fine-tuning reticle shift, and housed in a robust first focal plane 30mm tube, this full-functional rifle scope is designed to cover all essential aspects of shooting and hunting needs.

The CRS.3 incorporates two popular RS Series reticles: the SHR-W (MOA) and SHR-MIL (MIL), so precise and accurate dialing are just a few clicks away. With a robust design, the CRS.3 is our recommended rifle scope for mid- to long-range big game hunting and recreational shooting.

The CRS.3 delivers high quality at an affordable price. With exceptional clarity, smooth focus, precise adjustments, and robust construction to endure heavy use, the CRS.3 stands out as a unique standout among our CRS Series.

Includes neoprene cover.

Riflescope Comparison Chart (PDF)
Riflescope Manual (PDF)
Ballistics Calculator

 

Specifications

CRS.3 MOA

CRS.3 MIL

Focal plane

First

Magnification range

4x - 20x

Obj. lens diameter

50mm

Tube diameter

30mm / 1.18in

Objective outer diameter

58.04mm

Eyepiece outer diameter

43.63mm

Overall length

390.5mm / 15.37in

Weight (without battery)

27.27oz / 773g

Internal adjustment range (MOA/MIL)

0.1 MIL

75 MOA

25 MIL

Travel Windage

38 MOA

12 MIL

Click value

0.250 MOA

56~73mm

Adjustment per turret revolution

15 MOA

5 MIL

Parallax adjustment

11y - Infinity

Exit pupil diameter

@4x: 11.5mm

@20x: 2.5mm

Eye relief

@4x: 87-100mm

@20x: 81-94mm

Field of view @ 100y

@4x: 22.5ft

@20x: 4.73ft

Front/Rear mounting length

F: 73.0mm

R: 46.8mm

Effective objective lens diameter

@4x: 50.0mm

@20x: 50.0mm

Field of view

@4x: 4.25°

@20x: 0.83°

Field of view, apparent

@4x: 17.3°

@20x: 17.1°

Diopter correction (dpt)

-3+1.5

Light transmission

1m for 30 min. (IPX7)

Twilight factor

@4x: 13.56

@20x: 31.62

Functional temperature

–4°C to 70°C

Submersion tightness / waterproof rating

1m depth

Gas purged

Nitrogen

Reticle construction

Etched Glass

Reticle options

SHR-W

SHR-MIL

Illuminated reticle Y/N

Yes

Red

Origin

Made in the Philippines

See Clearly. Move Naturally.

Optics that work with you, not against you.

First Focal Plane

Holdovers and subtensions stay accurate through zoom range.

0.25 MOA/click or 0.1 MIL/click

Precise, repeatable adjustments for confident dialing at any distance.

2 Reticle Options: SHR-W and SHR-MIL

Pick the reticle that suits your style and shooting needs.

Etched Reticle

Sharp, consistent aiming point that won’t fade under recoil or lighting.

Exceptionally Clear, Bright, High Contrast Image

See more, sooner—with an image that cuts through haze and shadow.

Excellent Color Fidelity

Renders true-to-life tones that make details stand out instantly.

Phase Correction Coating

Improves resolution and contrast for a sharper, more detailed view.

Waterproof and Fog Proof

Zero fog, zero hesitation—regardless of weather or altitude.

Maven: Crafted for the Outdoors

Mountain Town Roots

Maven started in a mountain town, driven by folks who’d rather be out hunting or hiking than chasing corporate profits. Their optics are made for people like you—hunters, birdwatchers, anyone who trusts their gear to make every moment in the wild count. It’s honest craftsmanship from a team that shares your passion for the outdoors.

Top Quality Craftsmanship

Maven skips the retail middleman and those 15-30% markups that jack up prices in stores. By selling direct, they focus on what matters: top-grade Japanese glass and materials built to handle the toughest conditions, not cheapened to fit a retailer’s price tag. You get optics designed to perform, shipped right from their workshop to your door.

Your Australian Connection

As Maven’s Australian supplier, The Modern Hunter is right here, living the same outdoor life you do. Call us up, and you’ll talk to a real person who knows Maven’s gear and Australia’s rugged terrain inside out. We’re ready to help you pick the perfect optics for your next adventure, with the kind of service you’d expect from a mate.

Customer Reviews

Frequently Asked Questions

Can't find the answer to your question?

Email: Josh@themodernhunter.com.au

Or use the chat in the bottom corner

What is your warranty?

All Maven optics come with an unconditional lifetime warranty. If your optic becomes damaged or is at all defective (not including deliberate or cosmetic damage that does not hinder product performance), contact us immediately for repair or replacement. We don’t care where or when you bought it or if it was your fault or not - if it says Maven, we will take care of it.

What is included when I buy a riflescope?

Each riflescope comes with a neoprene scope cover, ideal for field use and for storage while not in use.

How are SFP subtensions calculated?

We’ll use the RS.2 SHR reticle below as an example. Assuming one zeros the scope in at the highest power (10x) the measurement from the center of the reticle to the bottom hash mark is 20 MOA. If we change the magnification to 2x we can take the power (high power / low power) in this case 5 x 20 to get 100 MOA at 2x.

What is the return policy on a riflescope?

We have a two week return policy as long as they are in new and unmounted condition.

Why don't you offer a demo program for riflescopes?

Riflescopes are difficult to demo for a few reasons. First, while any person could mount a scope on their own, scope mounting requires knowledge and specialized tools that are not always readily available. Without adequate tools, the demo unit could be over-torqued causing damage to the scope, and without proper eye-relief the person operating the scope could be injured. Second, if we received a demo scope that was damaged by the previous user, and we didn’t catch the damage before sending the scope off to the next customer, we could be giving that customer a poor experience and at worst an unsafe device.


 

How can I check out your optics before purchase?

We attend several events per year including expos, fairs, and other outdoor events. As well as some club meetings. This is a great way to see our gear in person. Please get in touch so we can assist you selecting the right optic for your needs

Why is a hard case not included?

We know that not everyone uses or wants a hard case. If a hard case was included, the overall cost of the optic to the customer would be higher. As with all of our components we keep the cost as low as possible.

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josh@themodernhunteraustralia.com

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Maven Optics

Tricer Tripods & Accessories

Striver Gear

Crispi Footwear

Magview Digiscoping

About

About Us

Endorsements

Contact

FAQs

Shipping

Warranty / Returns

Contact

0404 372 653

josh@themodernhunteraustralia.com

Copyright © 2025 The Modern Hunter. All Rights Reserved.
Maven CRS.3 - 4-20x50 FFP Scope

Maven CRS.3 - 4-20x50 FFP Scope

$1,399.00
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