The newest iteration by CZ, the Bren 2 S was developed with specific requirements sought by the Czech military. The most noticeable difference in the Bren 2 is the drastic weight loss. The aluminum upper receiver has been trimmed down while the lower is made from carbon fiber-reinforced polymer.

The Bren 2 features a charging handle and doubles as a forward assist, while still being swappable from either side. Other features include ambidextrous controls similar to the AR rifle. Available in pistol form, the Bren 2 comes with a flush rear plate that accepts an AR-style receiver extension for arm braces or buttstocks(NFA Rules Apply).