The Draco nak9 is pre-drilled in the rear of the receiver. So you can purchase two different mounting Options, first is a rail that will attach to the receiver to let you mount a brace. Or second you can buy an ak buffer tube adapter to add a buffer tube and add a brace that way. Just Google Draco nak9 brace adapter and a bunch of options will pop up. Hope this helps.

Christopher, the SBA3 with Adapter is what I recommend Sir : https://rapidfiretek.com/product/sba3-5-position-adjustable-brace-adapter-for-century-draco-nak9-ak-pistol/