GOWUTAR A20G 2 MOA Green Dot Sight – RMR Footprint with Picatinny Mount

Versatile Mounting Across Multiple Platforms

The GOWUTAR A20G uses the industry-standard RMR footprint for installation on compatible RMR-cut pistol slides and mounting plates. For long-gun applications, the included detachable low-profile Picatinny mount allows the optic to be installed on compatible Picatinny and many Weaver-style rails.

This adaptable mounting system makes the A20G a practical choice for shooters who want one compact green dot sight that can be configured for a pistol, rifle, or shotgun.

Crisp 2 MOA Green Dot

The 2 MOA green dot provides a refined aiming point that supports precise shot placement without unnecessarily covering the target. Green illumination can also offer strong visual contrast against many outdoor and indoor backgrounds.

The fully multi-coated lens helps improve light transmission and reduce distracting reflections. Combined with a 24 × 17.21 mm viewing area, 1× magnification, and unlimited eye relief, the A20G supports fast, both-eyes-open aiming while maintaining awareness of the surrounding area.

(Prefer a single red dot or a red multi-reticle aiming point? Check out the A20R Red Dot Sight and A20C Red Multi-reticle Sight)

Ten Brightness Settings

Choose from eight daylight settings and two night-vision-compatible settings using the side-mounted controls. The wide adjustment range helps maintain a visible aiming point in bright outdoor environments, indoor ranges, lower-light conditions, and compatible passive night-vision applications.

For the clearest sight picture, use the lowest brightness level that keeps the dot clearly visible in the current environment.

Motion-Activated Readiness

Once the A20G is switched on, its motion-sensing function operates automatically. After approximately four minutes without movement, the green dot turns off to conserve battery power.

When movement is detected, the reticle immediately returns at the previously selected brightness setting. This provides a practical balance between readiness and efficient battery use during storage, transport, range sessions, and everyday use.

Rugged 7075 Aluminum Construction

The A20G housing is manufactured from 7075 aircraft-grade aluminum for increased strength without unnecessary bulk. Its IPX8 waterproof rating and 1800G shock resistance help protect the optic against rain, moisture, repeated recoil, and demanding outdoor environments.

The hardcoat anodized finish provides additional surface protection against everyday wear and corrosion.

Convenient Top-Loading Battery

The top-access battery compartment allows the CR1632 battery to be replaced without removing the optic from its mounting position. This simplifies routine maintenance and helps avoid unnecessary disturbance to the established zero.

Precise and Repeatable Adjustments

Windage and elevation adjustments move in 1 MOA increments, with a total adjustment range of 90 MOA. Each adjustment produces an audible and tactile click to support controlled zeroing.

The A20G is factory preset at approximately 33 yards, although final zero confirmation is required after installation on the firearm.

Specifications

Model	A20 Open Reflex Sight
Reticle	2 MOA Green Dot
Footprint	RMR
Included Mount	Low-Profile Picatinny Mount
Housing Material	7075 Aircraft-Grade Aluminum
Finish	Hardcoat Anodized
Lens Size	24 × 17.21 mm / 0.95 × 0.68 in
Lens Coating	Fully Multi-Coated
Magnification	1×
Eye Relief	Unlimited
Brightness Settings	10 Levels: 8 Daylight + 2 NV
Motion Activation	240-Second Automatic Timeout
Adjustment Value	1 MOA per Click
Windage/Elevation Range	±45 MOA / 90 MOA Total
Waterproof Rating	IPX8
Shock Resistance	1800G
Battery	CR1632 3V
Battery Life	Approximately 160–40,000 Hours
Dimensions	45.3 × 29.9 × 26.6 mm / 1.79 × 1.18 × 1.05 in
Net Weight	40 g / 1.41 oz

Package Contents

• 1 × GOWUTAR A20G Green Dot Sight
• 1 × Low-Profile Picatinny Mount
• 1 × CR1632 Battery
• 3 × Mounting Screw Sets
• 1 × Protective Cover
• 1 × Mini Screwdriver
• 1 × Lens Cloth
• 1 × User Manual

 

FAQ

Does the A20G fit every RMR-cut pistol?

The A20G uses the industry-standard RMR footprint, but slide cuts, adapter plates, mounting depths, and screw requirements can vary. Confirm compatibility with your firearm or plate manufacturer before installation.

Can the A20G be mounted on a rifle or shotgun?

Yes. The included low-profile Picatinny mount allows the sight to be installed on compatible Picatinny and many Weaver-style rail systems.

What are the benefits of a green dot?

A green aiming point can provide strong visual contrast against many backgrounds and may be easier for some users to acquire quickly. Individual visibility can vary depending on eyesight, lighting, and brightness settings.

Does the A20G have Shake Awake?

Yes. After approximately four minutes without movement, the reticle automatically turns off. Movement reactivates it at the previously selected brightness setting.

Do I need to remove the optic to change the battery?

No. The top-access battery compartment allows the CR1632 battery to be replaced without removing the sight from the firearm.

What does a 2 MOA dot mean?

A 2 MOA dot covers approximately two inches at 100 yards. It provides a relatively precise aiming point for range training, competition, hunting, and general shooting applications.

Is the A20G waterproof?

The A20G carries an IPX8 waterproof rating. Make sure the battery cap is correctly installed and tightened before exposing the optic to wet conditions.