MP-443 Grach MP-443乌鸦式手枪
（重定向自PYa）
The MP-443 Grach (Russian:MP-443 Грач, English: rook) or "PYa", for "Pistolet Yarygina" ("Yarygin Pistol"), following traditional Russian naming procedure (Russian:Пистолет Ярыгина), is the Russian standard military-issue side arm.
The development was headed by the designer Vladimir Alexandrovich Yarygin (Russian:Владимир Александрович Ярыгин).