Aim-O Delta Type Open Red Dot — TAN

The Aim-O Delta Type is an open-tube red dot sight in TAN, designed to mount on standard RAS rails and deliver fast target acquisition at short to medium distances. Its compact form factor makes it a practical fit for lightweight builds on rifles, carbines, and airsoft replicas.

Six brightness levels let you match the dot intensity to your environment: at the high end the dot stays visible in full sunlight without washing out the field of view, while the lower settings make the sight usable alongside night-vision devices or in low-light conditions without creating glare. Managing brightness is a manual task — unlike sights with an automatic ambient-light sensor, you need to remember to adjust the level when conditions change.

Power comes from a single CR2032 battery, a widely available format that is included in the box. Switching off requires a 3-second press and hold: this design choice prevents accidental shutdown during use, but it also means the device cannot be killed with a quick tap in an emergency. Anyone who needs instant power-off should factor in this trade-off.

Key points

• Six brightness levels cover direct sunlight through low-light environments, removing the need to swap optics as conditions change.
• The open-tube construction keeps weight down and maintains a low profile, compatible with low and medium-height mounts on RAS rails.
• CR2032 is a standard cell: a spare is easy to find even when away from home.
• The 3-second hold-to-off function guards against accidental deactivation during use.
• The TAN finish integrates with desert or flat dark earth setups without additional paint work.

In the box

• 1x Aim-O Delta Type sight (TAN)
• 1x CR2032 battery