In this video, Caliber Six Airsoft presents an unboxing and review of the Arcturus Centaur AR03 M4 PDW. The weapon boasts a robust construction of steel and aluminum, ensuring durability. It features an 8-inch octagonal M-LOK handguard, which is compatible with any M-LOK accessories. A full-length 20mm Picatinny top rail is integrated for the attachment of optics and back-up iron sights.

The PDW stock is adjustable, allowing for a customizable length of pull to suit the user's preference. The weapon also includes an ambidextrous sling plate for versatile carrying options. For quick and efficient targeting, it comes with back-up quick flip-up iron sights.

The Arcturus Centaur AR03 M4 PDW is equipped with a quick-change spring gearbox for easy maintenance and customization. Lastly, it offers changeable backstrap grip plates for a comfortable and secure hold.