How does the 50mm objective lens and iCONTROL illumination perform during dawn and dusk low-light hunts?

The GPO Spectra 4-16x50i achieves up to 92% total light transmission through its DoubleHD and GPObright lens coatings, providing exceptional brightness in dim conditions. The iCONTROL fiber-optic red dot illumination features a continuously variable intensity and an automatic 3-hour shutoff, ensuring the aiming point remains crisp and uncluttered when game steps out early or late.

What rings or mounts are required to attach this scope, and are sunshades or extra accessories available?

This riflescope features a standard 30 mm main tube diameter, requiring standard 30 mm scope rings or mounts for installation. For enhanced glare reduction in bright outback conditions, it pairs directly with the Gpo Sunshade 50mm, and you can also utilize the Gpo Spectra Dot High Mount depending on your firearm configuration.

Does this optic require any special Australian electrical certifications or standard 240V mains power?

No mains power or complex electrical certifications are required. The scope operates solely on a single internal CR2032 coin battery to power the reticle illumination, meaning standard Australian 240V plug compatibility, SAA approvals, and RCM compliance are not applicable to this optical device.

How does the side parallax and G4i-Drop ballistic reticle handle different shooting distances?

The side parallax adjustment focuses cleanly from 10 metres to infinity, making it versatile enough for close-range rimfire pest control out to extended centerfire ranges. The G4i-Drop reticle incorporates etched ballistic holdover marks beneath the center crosshair, allowing for rapid holdover execution without needing to manually twist the capped Passiontrac turrets.

4-16x50i Riflescope - GPO RSX442

The GPO SPECTRA 4x 4-16x50i G4i-Drop is a second focal plane hunting riflescope engineered for medium-to-long-range shooting and low-light target acquisition. Built on a 30 mm aircraft-grade aluminum main tube, it combines DoubleHD objective lens elements with GPObright multi-coatings to achieve a daylight ISO 14490-5:2005 light transmission rating of 90%. The optical system provides 4x to 16x magnification with an illuminated G4i-Drop reticle, side parallax compensation down to 10 metres, and PASSIONtrac capped 0.1 MRAD resettable turrets delivering 210 cm of total travel at 100 metres.

Key Features

G4i-Drop Ballistic Reticle: Etched ballistic drop holdover marks located below the center crosshair allow quick elevation holds at extended ranges without requiring turret adjustments.
iCONTROL™ Illumination System: Features continuously variable fiber-optic micro-dot red illumination powered by a single CR2032 battery, complete with an automatic 3-hour shutoff and a low-battery alert.
Side Parallax Adjustment: Turret-mounted side focus adjusts from 10 metres to infinity to eliminate parallax error across all magnification settings.
High Light Transmission Optics: DoubleHD glass and fully multi-coated GPObright surfaces deliver high edge-to-edge clarity and contrast during dawn and dusk.
Weatherproof Construction: Nitrogen-purged, waterproof, and fogproof 30 mm main tube rated to withstand recoil from heavy standard and magnum centerfire calibres.

Specifications

Magnification: 4x – 16x
Objective Lens Diameter: 50 mm (outer mechanical diameter: 57.2 mm)
Main Tube Diameter: 30 mm
Focal Plane: Second Focal Plane (SFP)
Field of View (FOV): 10.4 m to 2.6 m at 100 m
Eye Relief: 95 mm
Exit Pupil: 9.5 mm at 4x to 3.1 mm at 16x
Turret Adjustment Value: 0.1 MRAD (1 cm at 100 m) per click
Elevation and Windage Travel: 210 cm at 100 m (21 MRAD)
Parallax Adjustment: 10 m to infinity
Overall Length: 370 mm
Weight: 629 g (without covers)
Power Source: 1x CR2032 3V coin cell battery

Who is the Gpo Spectra 4x 4-16x50 G4i Drop for?

Medium-to-long-range deer and pest hunters — Needs the 4x to 16x magnification range paired with integrated G4i-Drop ballistic holdover lines on this second focal plane hunting riflescope to engage targets from 10 metres to beyond 600 metres without dialing the capped turrets.
Low-light dawn and dusk shooters — Relies on the 50 mm objective lens diameter and 90% ISO light transmission rating of this second focal plane hunting riflescope to maintain target visibility and contrast during marginal light conditions.

Less suitable for: Close-range brush or driven hunting under 25 to 50 m where the 4x minimum magnification restricts the field of view (a 1-6x or 1-8x low-power variable optic is better suited); ultra-lightweight mountain stalking setups requiring optics well under 629 g (a compact 1-inch, 3-9x40 scope is better suited); or dedicated dial-up long-range target shooting competitions where First Focal Plane reticles with exposed tactical turrets and higher magnification ranges are better suited.

SKU	GPO40616LP
Model #	RSX442
Brand	Gpo
Shipping Weight	1.0000kg

What our Customers are Saying

Recommended Products

Hawke Vantage Ir 14260 Riflescope 4-16x50 Ao Mil D

$512.95

Zerotech Thrive 1-10x24 G4 Ir Lpvo Illuminated Rif

$498.95

Athlon Neos 3-9x40 Sfp Ir Riflescope With Bdc 500

$395.95

Alpen Apex Xp 5-25x50mm Bdc Target Riflescope With

$1,649.95

Welcome to Xhunter Australia. By accessing and using our website (www.xhunter.com.au) and purchasing from our online store, you agree to be bound by the following Terms and Conditions. Please read them carefully before proceeding.

1. Eligibility

By agreeing to these Terms and Conditions, you confirm that:

• You are at least 18 years of age.
• You are legally capable of entering into a binding contract under Australian law.
• You will not purchase any restricted or controlled items unless legally permitted to do so.

2. Product Information

• All products listed are subject to availability.
• Product descriptions, specifications, and pricing are subject to change without notice.
• We make every effort to display products accurately, although we do not guarantee that all images or content are error-free.

3. Orders and Payments

• All orders are subject to acceptance and confirmation.
• Prices are in AUD and include GST unless otherwise stated.
• We reserve the right to cancel or refuse any order at our sole discretion.
• Full payment is required before dispatch.

4. Authority to Leave (ATL) and Delivery

• By default, all orders are shipped with Authority to Leave (ATL).
• If you require Signature on Delivery, please contact us prior to purchasing. Additional charges apply.
• If an order is returned to us due to failed delivery or non-receipt when ATL is not permitted, a $25 return processing fee must be paid before reshipment or refund.

5. Returns and Refunds

• Please refer to our full Returns Policy on the website.
• Returned items must be in original, resalable condition unless faulty.
• A restocking fee may apply if an item is not in reselling condition.
• Change-of-mind returns may not be accepted for clearance or custom-ordered items.

6. Firearms and Restricted Items

• You must comply with all relevant State and Federal laws for regulated products.
• You are responsible for ensuring proper licences and permits are held.
• We reserve the right to request proof of eligibility before dispatch.

7. Limitation of Liability

• Xhunter Australia is not liable for direct or indirect losses arising from the use or misuse of products.
• We are not responsible for any unauthorised modifications or incorrect application of products.

8. Manufacturer Warranty Support

Some products sold by Xhunter Australia include a manufacturer’s warranty (for example, limited lifetime warranties). These warranties are provided solely by the manufacturer and are separate from the consumer guarantees under Australian Consumer Law.

Where a manufacturer provides a warranty:

A. The warranty is offered and honoured by the manufacturer, not by Xhunter Australia, unless expressly stated otherwise.
B. Customers may be required to contact the manufacturer directly and comply with their warranty process, which may include overseas product assessment.
C. Proof of purchase is required to lodge a manufacturer warranty claim.
D. Assistance provided by Xhunter Australia in lodging warranty claims is a goodwill service only and does not imply liability for warranty outcomes or decisions.

Nothing in this clause limits your rights under Australian Consumer Law.
Xhunter Australia remains responsible for providing legally required remedies for products that fail to meet the consumer guarantees of acceptable quality, fitness for purpose, and reasonable durability.

9. Privacy

Your personal information is collected, used, and stored in accordance with our Privacy Policy.

10. Intellectual Property

All text, graphics, logos, and images on this website remain the property of Xhunter Australia and are protected by copyright laws.

11. Amendments

We may update or modify these Terms and Conditions at any time without prior notice. Continued use of our site constitutes acceptance of any updated Terms.

12. Governing Law

These Terms and Conditions are governed by the laws of Victoria, Australia. Any disputes will be handled exclusively by the courts of Victoria.

13. 18+ Age Requirement

By placing an order, you confirm that you are at least 18 years of age and legally entitled to purchase the products ordered. We may cancel any order that breaches this requirement.

Gpo Rsx442 Spectra 4x Riflescope 4-16x50i G4i-Drop Sfp 30mm

Secure Payment Methods