The Action Base 5 (AB5) improves upon the AB2's design adding versatility. The AB5 is able to accommodate regular-sized 1/144 scale, and SD Gunpla kits, as well as similar sized collectibles.

Each AB5 packaging includes one hexagonal base (the same as those included in AB4), one connector parts for connecting this base to AB4 and other AB5 bases, two standard support arms, various joint parts, and multiple adapters: two fork-type, two peg-type, and one pincer-type. The standard support arms can be used individually (for displaying two kits) or connected together (for more height or position options). There is also a thinner support arm ideal for displaying weapons and accessories, such as "attack drones" (e.g. funnels, bits). The various joint parts can be used to attach support arms that were included in previously released kits.

The included AB5 parts are identical to those found in the AB4 making them compatible with each other.