The ASM-N-2 Bat was a United States Navy World War II radar-guided glide bomb[3][4] which was used in combat beginning in April 1945.

The Bat was the production version which combined the original NBS airframe with a 1,000-pound (454 kg) AN-M65 GP bomb, the same basic ordnance that was used in the contemporary Azon guided munition, and the Pelican active radar system.

Hugh Latimer Dryden won the President's Certificate of Merit for the development of the Bat,[3] which "was flight tested by a small unit based at Philadelphia against targets in New Jersey.

"[8] While the NBS developed the Bat's aerodynamic and gyroscopic stabilizing systems, MIT and Bell Labs worked together on its guidance mechanism.

[6] The antiship variant of the Bat (SWOD, for "Special Weapons Ordnance Device",[9] Mark 9 Modification 0) eventually saw combat service beginning in April 1945 off Borneo, dropped by Consolidated PB4Y Privateers[7] (one bomb mounted under each wing) at altitudes of 15,000 to 25,000 feet (4,600 to 7,600 metres) at airspeeds of 140 to 210 kn (260 to 390 km/h).