Which munition is the 1000-pound bomb with GPS/INS (JDAM) guidance?

• A. GBU-32
• B. GBU-31
• C. GBU-12
• D. MK-83

Answer: (A)

JDAM turns a standard bomb into a precision, all‑weather weapon by adding a GPS/INS guidance kit. For the 1000-pound class, the bomb body most often used with JDAM is the Mk-83, and when the JDAM kit is attached it is designated GBU-32. The Mk-83 by itself is an unguided 1000-pound general‑purpose bomb, so it wouldn’t have GPS/INS guidance without the JDAM kit. The other options involve different weight classes or guidance types: a 500-pound laser-guided bomb (not GPS-guided), and a 2000-pound JDAM variant (GBU-31) that uses a Mk-84 body.