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GBU-31 Joint Direct Attack Munitions
Photo: U.S. Navy photo by Photographer's Mate 2nd Class Richard Moore. · Wikimedia Commons · Public domain Use of this image does not imply endorsement by the U.S. Department of Defense (DoD).
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GBU-31JointDirectAttackMunitions

Laser-Guided Bombs (LGB) · United States · 1995
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GBU-31JointDirectAttackMunitions

GBU-31 Joint Direct Attack Munitions
GBU-31 Joint Direct Attack Munitions Photo: U.S. Navy photo by Photographer's Mate 2nd Class Richard Moore. · Wikimedia Commons · Public domain Use of this image does not imply endorsement by the U.S. Department of Defense (DoD).
* Absolute score — assessed within category · no era adjustment
Accuracy
90
Lethality
85
Moving-Target Capability
70
Stand-Off Range
80
Versatility
90
Reliability
95
Platform Compatibility
95
All-Weather Capability
60
Technology
85
Cost-Effectiveness
90
Origin United States
CategoryLaser-Guided Bombs (LGB)
EraPost-Cold War
In service1995
Operators19 countries
Data Quality86%
MASS(Military Archive Scoring System)
84
Laser-Guided Bombs (LGB) MASS Rating
1/5
Post-Cold War
1/18
All-Time
Laser-Guided Bombs (LGB) · 10 axes scored
Accuracy
90
Lethality
85
Moving-Target Capability
70
Stand-Off Range
80
Versatility
90
Reliability
95
Platform Compatibility
95
All-Weather Capability
60
Technology
85
Cost-Effectiveness
90
ⓘ Regardless of era, the same scoring system applies to all units in the laser-guided bombs (lgb) category.
01 / Overview
GBU-31 Joint Direct Attack Munitions
Production
1995–
Unit Price (current)
$31.1K↗ 24% inflation · 2020→2025
Original Price
$25.0K (2020)
Operators
💰 PERFORMANCE / PRICE ASSESSMENT Methodology ↗
LASER-GUIDED BOMBS (LGB) · POST-COLD WAR
1
PERFORMANCE/PRICE
78
UNIT COST (2025 USD)
$31.1K
Original: $25.0K (2020)
Inflation: +%24
84
laser-guided bombs (lgb) category
ⓘ Performance/Price and MASS score are computed across all units in the laser-guided bombs (lgb) category, regardless of era.
02 / Specs & Design
◎General6MOD.6
  • Munition Typelaser‑guided bomb
  • Service Entry Year1995
  • Total Weight907 kg
  • Length3.66 m
  • Diameter406 mm
  • In ServiceYes
◈Guidance5MOD.5
▣Warhead & Effect3MOD.3
  • Warhead Typeconventional high‑explosive
  • Explosive Filler Weight453 kg
  • Filler TypeComposition B
◇Delivery1MOD.1
◆Platform3MOD.3
  • Compatible AircraftF‑15E, F‑16, F‑18, F‑22, F‑35, A‑10, B‑1, B‑52, Tornado, Eurofighter Typhoon
  • Low-Drag BodyYes
  • Fin / Tail Typefolding tail fins
▤Warhead Detail2MOD.2
  • Detonation Mechanism / Fuzecontact and delayed
  • Explosive Filler Weight453 kg
03 / History
SERVICE LIFESPANStill in Service
  1. 1995Production started
31
years in service
19
countries operating
ⓘ The producing country still actively operates it.
04 / Operators
📖 TERMS ON THIS PAGE4terms
A navigation system combining Global Positioning System (GPS) for absolute positioning and Inertial Navigation System (INS) for dead reckoning, providing continuous and accurate location and orientation data.
A guided bomb is a munition that uses a guidance system to modify its flight path in real-time to ensure accuracy.
A streamlined design reducing air resistance to increase the speed or accuracy of a Gravity Bomb.
These terms are listed automatically because they appear on this page.full encyclopedia →
📚 Sources
📖 ENCYCLOPEDIA Browse the Laser-Guided Bombs (LGB) entry →