TM4 | Red dot sight | AIM-O

TM4 Red Dot – this red dot sight for fast target acquisition

This TM4 red dot from Aim-O is a replica of the renowned Aimpoint CompM4. A robust sight that’s a perfect fit for airsoft replicas and air rifles. Its bright red dot makes aiming much faster—especially useful in dynamic shooting scenarios where you need to switch between targets quickly.

What we think of this red dot sight

The Shogun team is impressed by the build quality for this price range. This red dot feels sturdy thanks to its aluminum housing, and its compact 13 cm size keeps it from feeling bulky on your replica. The switchable red/green dot is a nice extra—green works better in bright daylight, while red is better at dusk.

Technology and optical performance

With 1x magnification and a 30 mm lens diameter, this sight offers a wide field of view without magnification—ideal for fast target acquisition. The red or green dot has adjustable brightness, so you can always choose the right intensity for your surroundings. The sight runs on two LR44 batteries that last a long time. At 360 grams, it’s a reasonable weight for a red dot of this size. Its splash-resistant construction and fog-resistant coating let you keep shooting in changing weather conditions.

Mounting and compatibility

This red dot mounts on a Picatinny rail—the standard on airsoft replicas and many PCP air rifles. The sight is also compatible with Weaver rails, giving you more mounting options. The mount is integrated into the design, so you don’t need separate rings. Another handy extra: Aim-O includes lens caps with this sight. They keep your lenses protected during transport and storage.

Who is this red dot sight for?

Perfect for airsoft players who want to aim quickly without sacrificing precision. It’s also ideal for use on an air rifle when shooting at short to medium range. Whether you’re a beginner or an experienced shooter, this sight is intuitive to use. The red/green dot makes it suitable for both CQB games and outdoor skirmishes where lighting conditions vary.

Ready to add the TM4 Red Dot to your setup?