U-23A1 Hand Grenade

The fictional U-23A1 Hand Grenade  appears as the OPFOR counterpart to the M67 hand grenade, and appears to be modeled off the Mecar M72 Hand Grenade. Sometimes, the player will be able to hear an enemy say the phrase "Frag zool", which translates to "Frag out" and may be the only warning the player receives of an incoming U-23A1 grenade.