M
- M-4 SLBM
- M45 SLBM
- M51 SLBM
- Manta Mine
- Mattress
- MM-38 Exocet SSM
- MM-40 Exocet SSM
- Modele 53 100mm Gun
- Modele 64 100mm Gun
- Modele 68 CADAM 100mm Gun
- Modele 100 TR 100mm Gun
- MU90 Impact Torpedo
- Mk 7 16 inch Gun
- Mk 8 Torpedo
- Mk 10 Missile launcher
- Mk 13/22 Missile Launcher
- Mk 14 torpedo
- Mk 15 Phalanx CIWS
- Mk 16 ASROC Launcher
- Mk 19 Grenade launcher
- Mk 22 3 inch Gun
- Mk 24 Tigerfish Torpedo
- Mk 26 Missile Launcher
- Mk 27 target torpedo
- Mk 29 Missile Launcher
- Mk 30 target torpedo
- Mk 32 SVTT (Surface Vessel Torpedo Tubes)
- Mk 36 SRBOC (Super Rapid Blooming Offboard Countermeasure)
- Mk 37 Torpedo
- Mk 46 torpedo
- Mk 38 Chain Gun
- Mk 38 Mod 1 Machine Gun
- Mk 38 Mod 2 Stabilized Machine Gun
- Mk 41 VLS (Vertical Launch System)
- Mk 42 5 inch Gun
- Mk 44 Torpedo
- Mk 45 5 inch DP (Dual Purpose) Gun
- Mk 46 Torpedo
- Mk 48 Torpedo
- Mk 50 Torpedo
- Mark 54 Torpedo
- Mk 74 FCS
- Mk 75 Oto Melara 76mm Compact Gun
- Mk 68 GFCS
- Mk 72 Mod 0 sonar system
- Mk 84 sonar system
- Mk 86 Gun FCS (Fire Control System)
- Mk 91 FCS
- MK 92 FCS
- Mk 114 ASW FCS
- Mk 116 ASW FCS
- Mk 112 ASROC Launcher
- Mk 141 Quad Harpoon Launcher
Read more about this topic: List Of Naval Weapon Systems