The SR-2 “Udav” is a modern Russian service pistol developed by TSNIITOCHMASH and introduced in the late 2010s. It was designed to replace the aging Makarov PM and to chamber the more powerful 9×21 mm cartridge. The pistol uses a short-recoil, locked-breech operating system and feeds from an 18-round detachable magazine.
As a parallel development to the SR-1 pistol, it has quite similar design and ergonomics, namely that it has a unique slide system where when a fresh mag is inserted, it'll chamber the round automatically.
Model by Akinaro; with thanks to Tweedy for the model donation.