Description

Holosun ARO-CORE-GD-2 — Compact 2 MOA Gold Dot Red Dot Sight, 22 mm Window, Shake Awake

Name: Red Dot Sight HOLOSUN ARO-CORE-GD-2 — Compact 2 MOA Gold Dot
Brand: HOLOSUN
Price: 199 CHF
Availability: InStock

Overview

The Holosun ARO-CORE-GD-2 is a compact and lightweight red dot sight — just 96 g for the optic alone — designed for modern rifle platforms: AR-15, PCC, semi-automatic and bolt-action rifles with Picatinny rail. It's the Gold Dot entry point of the ARO (Advanced Rifle Optic) Holosun line, positioned to deliver sport shooters and rifle enthusiasts a premium red dot at the best price on the market.

Its defining feature: a 2 MOA Gold Dot (LED 590 nm) — the high-visibility gold reticle that stands out better than classic red in bright environments and against visually complex backgrounds (direct sunlight, vegetation, green or light targets). A particularly relevant optimization for outdoor sport shooting, stand hunting, and variable field environments.

The enlarged 22 mm optical window, Shake Awake technology, side-loading CR2032 battery (replacement without disassembly), 50,000-hour autonomy and 10 daylight + 2 night vision settings deliver a premium user experience. MAO hard-anodized aluminum housing, IP67 water resistance, 1000G vibration resistance.

Delivered with TWO Picatinny mounts — the 1.63" central mount for lower 1/3 co-witness with AR-15 iron sights, and the 1.05" low mount for bolt-action / precision / hunting configurations — the ARO-CORE-GD-2 is immediately adaptable to nearly all Picatinny rail platforms. It uses the T1 / T2 footprint, the universal market standard for compact red dots.

Key Features

2 MOA Gold Dot: superior contrast to red in bright or visually complex environments.
22 mm optical window: expanded field of view — faster target acquisition.
Ultra-compact and lightweight: 96 g for the optic alone — among the lightest red dots in its class.
Shake Awake: motion-activated on, auto-off after inactivity.
50,000-hour battery life — over 5 years of continuous use at medium setting.
Side-loading CR2032: battery replacement without removing the optic — no need to re-zero.
10 daylight + 2 night-vision brightness settings.
Two mounts included: 1/3 co-witness (1.63") + low mount (1.05").
T1 / T2 footprint: universal standard — compatible with most premium third-party mounts.
MAO hard-anodized aluminum construction, IP67 waterproof, 1000G shock resistance.
1x magnification + parallax-free + unlimited eye relief.
Outstanding value: the Holosun Gold Dot entry point.

Full Specifications

Optics

Light source: LED (590 nm — Gold)
Reticle: 2 MOA Gold Dot
Magnification: 1x
Parallax: parallax-free
Eye relief: unlimited
Multi-coatings: yes

Electronic Functions

Shake Awake: yes
Auto Off: yes
Memory: yes
Manual brightness: 10 daylight + 2 night vision
Automatic brightness: no
Solar Power: no
Lockout Mode: no

Power

Battery type: CR2032
Battery life: 50,000 hours
Removable battery: yes
Battery location: side tray

Mechanical

Housing: aluminum
Surface finish: MAO hard-anodized
Color: black
Adjustment per click: 0.5 MOA
W&E travel range: ±50 MOA
Storage temperature: -40°C to +70°C
Working temperature: -30°C to +60°C
Waterproofing: IP67
Vibration resistance: 1000G

Physical

Window diameter: 22 mm (0.866")
Body dimensions: 63 × 39 × 67 mm (2.48" × 1.54" × 2.63")
Optic weight: 96 g (3.38 oz)
Central mount height: 1.63"
Low mount height: 1.05"
Mount weight: 49 g (1.73 oz)

Mount Compatibility

Direct mount: Picatinny (MIL-STD-1913)
Footprint: T1 / T2 — universal compact red dot standard (compatible with most third-party mounts: Scalarworks, ADM, GDI, Reptilia, Geissele, Warne, etc.)
Two mounts included: 1.63" lower 1/3 co-witness + 1.05" low mount

Why 2 MOA Gold Dot?

The Gold Dot is a notable evolution over classic red or green reticles. Its 590 nm wavelength (yellow-gold) offers several advantages:

Superior contrast in bright environments: gold stands out better than saturated red in full sunlight or on light backgrounds.
Better visibility on green / natural targets: red dots can get lost in vegetation, twigs, foliage — gold stays distinct.
Reduced eye fatigue: softer wavelength than pure red for prolonged use.
Colorblind-friendly: visible for the majority of red-green colorblind individuals.
2 MOA size: ideal compromise — fine enough for precise 100 m shots (~5.8 cm at 100 m), visible enough for CQB fast acquisition.

Use Cases & Context

Dynamic sport shooting: IPSC, USPSA, 3-Gun, PCC — compact + 22 mm window + gold dot combination for fast acquisition.
Short/medium-range precision sport shooting: up to ~200 m, extendable with a Holosun HM3X or HM5X magnifier.
Semi-automatic rifle platforms: AR-15 in 5.56 NATO / .223 Rem, PCC in 9x19, .308 Win rifles — 1.63" co-witness mount suited.
Bolt-action / precision rifles: 1.05" low mount for Picatinny-rail bolt-action, hunting, Field Target sport.
Stand and stalking hunting: gold dot particularly readable in forest environments or on variable-contrast targets. Compatible with big-game hunting when using appropriate .308 Win / 7.62 NATO caliber.
Service and patrol shooting (professional use): patrol rifle platforms — IP67 and 1000G suited to standard service constraints.
Modular configuration: universal T1/T2 footprint = wide choice of premium third-party mounts.
First premium red dot: ideal entry point into the Holosun ecosystem without compromising on quality.

ARO CORE GD-2 vs ARO EVO GD-2 — Which to Choose?

The two Gold Dot versions of the ARO Holosun range differ as follows:

ARO-CORE-GD-2 (this version): accessible line — 22 mm window, IP67, no Solar Failsafe, no automatic brightness, no Lockout Mode. Compact and light format (96 g). Ideal for a first Holosun Gold Dot red dot.
ARO-EVO-GD-2: high-end line — enlarged 26 mm window, reinforced IPX8 waterproofing, integrated Solar Failsafe, automatic brightness adjustment, Lockout Mode. For shooters seeking maximum ruggedness and features.

Both share the 2 MOA Gold dot, T1/T2 footprint, side-loading CR2032, Shake Awake and included dual mount — the ecosystem remains coherent.

Holosun Magnifier Compatibility

Holosun HM3X — 3x flip-to-side magnifier for range extension up to ~200-250 m
Holosun HM5X — 5x flip-to-side magnifier for range extension up to ~300-400 m