In this real steel video, Gunvira tries the CZ BREN 7.62x39, comparing it to the more common 5.56 model. Whilst the rifle maintains the platform’s excellent ergonomics and fully ambidextrous controls, it requires proprietary magazines. She notes that while aftermarket adapters exist for AK or AR-style mags, she finds them unreliable and prefers sticking with the stock factory magazines for better performance.