M45, M48 UHE Fragmentation Grenade

Just like SAS3, SAS4 has frag grenade. However, it is the only version to specify the model number. It is called M45 frag grenade, and upgraded version is called M48 Ultra High Explosive Grenade.
 * M45: 500 damage, buy 10 for 2000, "Enhanced high explosive pack this deadly fragmentation grenade that excels at room cleaning." - in-game description -
 * M48 UHE: 1500 damage, buy 10 for 10000, "M48 Ultra High Explosive grenades propel shrapnel at extreme speed for exceptionally devastating result." - in-game description -