Aimpoint COA-R Dot Sight - 3.5 MOA

Aimpoint COA™ R

The Aimpoint COA™ R is an ultra-compact, tubeless red dot sight designed specifically for rifle use and hunting in the UK. Built for longer-range shooting and varied field conditions, it offers quick target acquisition, a clear sight picture and rapid follow-up capability.

Compact, lightweight and precise, the COA™ R is suited to hunters who want the speed of a red dot platform with dependable performance on rifle setups.

Craftsmanship & Construction

The COA™ R maintains the lightweight, tubeless design of the COA platform while using a mechanically locked mounting approach. The optic is secured without screws entering the housing, supporting a stable and repeatable fit.

Waterproof Performance

The sight is submersible to 5 metres, giving it dependable protection for challenging outdoor and hunting conditions.

Aimpoint COA™ R Key Features

• Ultra-compact, tubeless red dot sight for rifles
• Optimised for rifle use and longer-range shooting
• 3.5 MOA dot size
• 4 night vision compatible settings and 8 daylight settings
• 50,000 hours of operation on one CR2032 battery
• Submersible to 5 metres
• A-CUT™ mounting solution supported via dedicated adapter plate for MICRO interfaces, sold separately
• Transmission average greater than 80% in the 425–610 nm range

Materials & Care

Specific material and care information is not provided. The sight-only weight is 48 g, supporting a lightweight rifle setup.

Size & Fit Guidance

The COA™ R uses a dedicated mounting plate to adapt the A-CUT™ footprint to a Micro™ compatible interface. The required mount plate is sold separately.

Aimpoint COA™ R Specifications

• Product type: Red dot sight
• Platform: Rifle
• Dot size: 3.5 MOA
• Battery: CR2032
• Battery life: 50,000 hours, over 5 years
• Settings: 4 night vision compatible settings and 8 daylight settings
• Waterproofing: Submersible to 5 metres
• Weight: 48 g, sight only
• Dimensions: 45 x 28 x 30 mm
• Transmission average: Greater than 80% in the 425–610 nm range

Aimpoint COA™ R Review

The Aimpoint COA™ R is a compact red dot sight built specifically for rifle use, with a focus on UK hunting and longer-range shooting. It combines a lightweight, tubeless format with fast target acquisition and a clear, unobstructed sight picture.

Its key strengths are precision, speed and mounting flexibility, making it a strong option for hunters who need a dependable red dot sight for dynamic field conditions.

Aimpoint COA™ R Performance & Key Features

The 3.5 MOA dot gives the COA™ R a precise aiming point while retaining the speed expected from a red dot sight. With 4 night vision compatible settings and 8 daylight settings, it offers broad visibility control across changing light conditions.

• Designed for rifle use and longer-range shooting
• 3.5 MOA dot for precise aiming
• 50,000-hour battery life on one CR2032 battery
• Compact 45 x 28 x 30 mm profile
• Submersible to 5 metres

Build Quality & Handling

At 48 g sight-only, the COA™ R is light enough to keep rifle handling clean and responsive. Its mechanically locked mounting system is designed to provide a stable and repeatable fit without screws entering the optic housing.

The compact, tubeless design helps maintain an open sight picture, supporting quick target engagement and rapid follow-up shots.

Is the Aimpoint COA™ R Easy to Use?

The COA™ R is designed around straightforward red dot operation, with daylight and night vision compatible brightness settings for adapting to different conditions. Mounting flexibility is supported through a dedicated adapter plate for Micro™ interfaces, although this plate is sold separately.

• Clear, unobstructed sight picture
• Compact format for rifle setups
• Multiple brightness settings for day and night vision use

Key Takeaways of the Aimpoint COA™ R

The Aimpoint COA™ R stands out for its compact tubeless design, 3.5 MOA dot, long CR2032 battery life and 5-metre submersible waterproofing. Its need for a separately sold adapter plate is worth noting for buyers planning a Micro™ compatible setup. For hunters wanting a fast, precise and lightweight red dot sight for rifle use, it is a highly focused option with strong field credentials.

Aimpoint COA™ R FAQs

What is the Aimpoint COA™ R designed for?

The Aimpoint COA™ R is designed specifically for rifle use and hunting in the UK. It is built with longer-range shooting, quick target acquisition and dynamic field conditions in mind.

What dot size does the Aimpoint COA™ R use?

The sight uses a 3.5 MOA dot. This gives a defined aiming point suited to precision while retaining the fast engagement benefits of a red dot sight.

How long does the Aimpoint COA™ R battery last?

The COA™ R offers 50,000 hours, or over 5 years, of operation from one CR2032 battery. This makes it well suited to users who want long-term reliability with minimal battery changes.

Is the Aimpoint COA™ R waterproof?

Yes, the Aimpoint COA™ R is submersible to 5 metres. This gives it dependable protection for wet, demanding outdoor conditions.

Does the Aimpoint COA™ R work with night vision?

Yes, the sight includes 4 night vision compatible settings. It also has 8 daylight settings, giving a total brightness setup suitable for a range of lighting conditions.

How heavy is the Aimpoint COA™ R?

The sight weighs 48 g on its own. This lightweight build helps preserve rifle balance and keeps the overall setup compact.

What are the dimensions of the Aimpoint COA™ R?

The COA™ R measures 45 x 28 x 30 mm. Its compact dimensions support a low-bulk rifle optic setup.

What mounting system does the Aimpoint COA™ R use?

The COA™ R uses an A-CUT™ mounting solution supported through a dedicated adapter plate for Micro™ interfaces. The adapter plate is sold separately.

What is the light transmission of the Aimpoint COA™ R?

The transmission average is greater than 80% in the 425–610 nm range. This supports a clear sight picture through the compact optic.

For more options, explore the full range of Aimpoint red dot sights here.