The 2S5 Giatsint-S (Russian: 2С5 «Гиацинт-С», lit. 'hyacinth') is a Soviet 152 mm self-propelled gun. "2S5" is its GRAU designation. It has nuclear, biological, and chemical protection. The 2S5 is capable of engaging targets at longer ranges and at a higher rate of fire than the more widely produced 2S3 Akatsiya 152 mm self-propelled gun, and is capable of firing nuclear projectiles.