From Wiktionary, the free dictionary
rök (“smoke”) + granat (“grenade, shell”)
rökgranat c
- (military) a smoke shell
- Synonym of rökhandgranat
2019, Raubtier (lyrics and music), “Bunkern [The bunker]”, in Överlevare [Survivor][1]:Automatkarbin, magasin och Glock. Taktisk tomahawk såväl som både rök- och spränggranater.- Assault rifle, magazines, and Glock. Tactical tomahawk as well as both smoke [grenades] and high-explosive grenades.