It used the 3.2 to 4 second UZRGM fuse, also used in the RGD-5, RG-41, and F1 grenades.
It used the 3.2 to 4 second UZRGM fuse. The 3.2 to 4 second UZRGM fuse was also used in the RGD-5-41, and F1 grenades.5 was RG.