The BLU-116 is a United States Air Force bomb, designed as an enhanced Bunker buster penetration weapon, designed to penetrate deep into rock or concrete and destroy hard targets. The BLU-116 is the same shape, size, and weight (1,927 lb / 874 kg) as the BLU-109 penetration bomb first deployed in the 1980s. The BLU-116 has a lightweight outer shell around a dense, heavy metal penetrator core. The shape and size mean that the BLU-116 could be used by unmodified existing aircraft and bomb guidance units such as the GPS guided GBU-31 Joint Direct Attack Munition and GBU-24 Paveway III laser-guided bomb.