How does the 32 mm objective lens perform in low light compared to larger scopes?

The GPO Spectra 6x 1.5-9x32i uses DoubleHD glass and GPObright multi-coatings to achieve 90% daylight light transmission, keeping the package ultra-compact at 496 g. While it delivers bright imagery during day and active daylight hours, hunters requiring dedicated deep-twilight or nocturnal performance will benefit more from a 50 mm or 56 mm objective lens.

What rings do I need to mount this scope, and are there any specific torque limits?

The Spectra RS620 features a standard 30 mm main tube diameter, making it compatible with a wide variety of 30 mm scope rings and mounts available in Australia. When installing, ensure you adhere to a recommended ring screw torque limit of 2.2 Nm to protect the internal chassis.

Can this riflescope handle heavy magnum recoil during Australian outback hunts?

Yes, this model is robustly constructed and tested to withstand up to 7,000 Joules of recoil energy. This makes it fully rated for heavy-hitting hunting calibres commonly used in Australia, such as the .300 Win Mag and 9.3x62, without losing zero.

What is the maximum effective shooting range for this fixed-parallax scope?

The scope has its parallax fixed at 100 metres and is optimised for close-quarters to medium-distance shooting out to approximately 400 metres using its 9x magnification. For dedicated long-range precision shooting exceeding 400 to 500 metres, a higher-magnification scope featuring adjustable side parallax is recommended.

How does the iCONTROL illumination system operate and save battery life?

The ultra-fine fibre-optic G4i reticle center dot is powered by a single CR2032 lithium coin cell battery housed in the turret. It features an intelligent auto-shutoff mechanism that turns off the illumination after 3 hours of inactivity, alongside an integrated low-warning indicator that alerts you when less than 15% battery remains.

Hunting Riflescope - GPO Spectra RS620

The GPO Spectra 6x 1.5-9x32i G4i Fibre (Model RS620) is an ultra-compact, second focal plane low-power variable hunting riflescope built on a 30 mm main tube. Engineered with a 6x zoom ratio spanning 1.5x to 9x magnification and a 32 mm objective lens, it delivers a broad 28.0 m field of view at 100 m on low power while enabling precise shot placement out to medium hunting ranges. Weighing 496 g and measuring 336 mm in length, this optic combines GPObright multi-coated DoubleHD glass offering 90% daylight light transmission with a recoil rating tested to withstand up to 7,000 Joules.

Key Features

iCONTROL Fibre-Optic Illumination: Powers an illuminated G4i German #4 style reticle with an ultra-fine centre microdot subtending 0.5 cm at 100 m, featuring an automatic 3-hour shutoff and a low-battery alert below 15% remaining capacity on its single CR2032 power cell.
PASSIONtrac Capped Turrets: Provides 0.1 MRAD (1 cm at 100 m) click adjustments across a broad 400 cm (40.0 MRAD) total elevation and windage adjustment range.
6x Super-Zoom Versatility: Offers an exit pupil ranging from 9.5 mm at 1.5x down to 3.5 mm at 9x, with a constant 97 mm eye relief for rapid, forgiving head positioning.
Rugged Weatherproof Construction: Nitrogen-purged, waterproof, and fogproof housing designed to mount on standard 30 mm scope rings with a recommended torque limit of 2.2 Nm.

Specifications

Magnification: 1.5x–9x
Objective Lens Diameter: 32 mm
Main Tube Diameter: 30 mm
Focal Plane: Second Focal Plane (SFP)
Reticle: G4i Fibre illuminated microdot
Field of View at 100 m: 28.0 m (1.5x) to 4.6 m (9x)
Eye Relief: 97 mm
Adjustment Graduation: 0.1 MRAD per click
Total Adjustment Travel: 400 cm (40.0 MRAD)
Fixed Parallax: 100 m
Dimensions: 336 mm (L) x 67.5 mm (W) x 47.9 mm (H)
Weight: 496 g
Battery Type: 1x CR2032 3V lithium coin cell

Who is the GPO Spectra 6x 1.5-9x32i G4i Fibre for?

Driven boar and game hunters — requires a wide 28.0 m field of view at 100 m on 1.5x magnification for fast target acquisition on running game, making this low-power variable hunting riflescope effective for close-quarters engagements.
Active stalkers and bush deer hunters — benefits from a compact 496 g total weight and a 30 mm main tube mounted to lightweight carbines, reducing fatigue during long days of mobile carry while offering up to 9x magnification for precision shots at medium ranges.

Less suitable for: Long-range shooting beyond 400 metres where higher magnification and adjustable side parallax are required (a dedicated long-range optic with adjustable parallax fits better), or dedicated nocturnal and deep-twilight hunting where an objective lens larger than 32 mm is necessary for maximum low-light transmission (a 50 mm or 56 mm objective hunting riflescope fits better).

SKU	GPO40685LP
Model #	RS620
Brand	Gpo
Shipping Weight	1.0000kg

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Gpo Spectra 6x Rs620 Riflescope 1.5-9x32i G4i Fibre

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