Hammer (BattleMech)

Hammer (BattleMech)
Production information
Manufacturer Free Worlds Defense Industries
Production Year 3053[1]
Model HMR-3M
Class Light
Cost 2,489,240 C-bills
Technical specifications
'Mech type Inner Sphere BattleMech
Mass 30 tons
Chassis Duralyte 299 endo steel
Armor Jolassa-325
Engine GM 150
Communications System Datacom 50
Targeting Tracking System Dynatec 1122
Heat Sinks 11 single heat sinks
Speed 86.4 km/h
BV (1.0) 616[2]
BV (2.0) 787[3]


The Hammer is a 'Mech that was built to provide fire support for light 'Mechs. Built around a long-range arsenal that can provide both direct and indirect fire support, it is also often paired with the Anvil, using its missiles to soften up the enemy at a distance until the Anvil can bring its lasers to bear.

The Hammer has a maximum speed of 86.4 km/h, which is enough for a 'Mech intended to stay at the edges of a battlefield acting in a fire support role. Additionally, the 'Mech has a respectable six tons of armor protection. With its average speed and good armor protection combined with its long-range weapons, the Hammer is a good overall light fire support 'Mech.[4]

Weapons and Equipment[edit]

The primary weaponry that the Hammer employs is a pair of Coventry Five-Tube LRM-5 launchers that allow the Hammer to rain destruction down on a target at up to 630 meters. These launchers are supplied with one ton of ammo each, and both are augmented with an Artemis IV fire control system for greater accuracy. For close combat the 'Mech carries three Martell medium lasers.[4]


  • HMR-3C 
    Called the Claw-Hammer, the 3C is built to make the Hammer capable of better defending itself when an enemy closes on the battlefield. This is done by removing one of the LRM-5 launchers and replacing it with four additional medium lasers, which gives the Hammer the ability to attack the enemy with an overwhelming laser barrage at close ranges. This variant also works well as a bodyguard 'Mech in a lance of Hammer 'Mechs. BV (1.0) = 834, BV (2.0) = 976[5]
  • HMR-3P 
    Also called the Pein-Hammer, the 3P is an extensive modification of the Hammer. The entire arsenal has been removed from the 'Mech and replaced with a short-range assortment of weapons making it an excellent brawler. The primary weapons are a pair of Streak SRM-4 launchers, backed up by two ER medium lasers and two small pulse lasers which provide the 'Mech with excellent close range protection. BV (1.0) = 736[2][6], BV (2.0) = 827[7]
  • HMR-3S 
    The 3S is commonly called the Slammer, this variant looks to increase the longevity of the Hammer on the battlefield as a fire support 'Mech. This is done by removing two of the medium lasers and replacing them with two more tons of ammunition. The 'Mech can fire a sustained barrage of LRM fire for up to eight minutes. BV (1.0) = 528[2], BV (2.0) = 638[8]

Design Quirks[edit]

The Hammer has the following Design Quirks:[9]



  1. MUL online date for the Hammer (BattleMech)
  2. 2.0 2.1 2.2 Combat Operations, p. 130
  3. Record Sheets: 3055 Upgrades Unabridged, p. 19
  4. 4.0 4.1 Technical Readout: 3055 Upgrade, pp. 16-17, "Hammer 'Mech Profile"
  5. Record Sheets: 3055 Upgrades Unabridged, p. 18
  6. Record Sheets: Upgrades, p. 44
  7. Record Sheets: 3055 Upgrades Unabridged, p. 20
  8. Record Sheets: 3055 Upgrades Unabridged, p. 21
  9. BattleMech Manual, p. 92 BattleMech Quirk Table - Hammer Entry.