UNSC Mammoth

The M510 Mammoth siegework has no equal in size, firepower, or tactical faculty within the UNSC's mobile planetside support contingent, making it one of the most powerful ground assets ever designed by humans. At roughly 70 meters in length and carrying numerous mounted support weapons and materiel caches, the M510's most significant attribute is its topside MAC, designed to target and eliminate hostile vessels, weapons, and even fortifications residing in terrestrial or even suborbital positions.

Ideal for kids ages 8 and up!


  • Buildable UNSC siegework vehicle measuring over 19" long (49cm) by 9" high (22cm)
  • Removable hull and multiple interior compartments
  • Multiple lowering ramps for troop and vehicle deployment
  • Vehicle bay designed to store and transport a fully loaded UNSC Night Ops Gausshog (sold separately)!
  • Figures included: Spartan Recruit, Spartan Operator, Marine, all-new Commander Lasky and mini light-up Roland!
  • Pieces 2030
  • Age 8+
  • Item #97174

$ 179.99 USD (MSRP)

  • Building Instructions PDF

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20 Product reviews

  • wojo71 wojo71

    Had a great time building it. 25hrs aprox time spent on it. My son loves Halo. For the money I feel the kit should have been put together better. I was missing 4 pieces. Fortunately 2 were underneath the vehicle and you can't really see it. The other 2 were C-clamp style that helped hold the fog lights on. One on each is sufficient I guess but the instructions called for 2 on each. I also had a melted/deformed block and 50! extra pieces :/ I assembled the mammoth in a room with just a table and 2 chairs. There was no chance I lost the pieces. They were never there. Better QC on these bigger kits I guess guys ;)

  • Medic8er Medic8er

    Fun to build. Safer than competition equivalent...didn't collapse when picked up

  • Yoyomasterninja Yoyomasterninja

    This set is HUGE! I love this set and i think it is something that people should get. However, this set is also the most expensive Halo Mega Bloks sets by far. And plus, the set is not to full scale, but who cares? A full scale model will likely cost $250. The Signature series sets are never full scale anyway. I mean, the mammoth is just pure awesome. And I always wanted to see this in the line. Definitely a set i would recommend to those builders who have a lot of money to throw out.

  • MdSxG MdSxG

    Not to scale or actual design of original in game that its supposed to be based on. Missing one full level outside and inside it is not a flat top base like this model makes it out to be. Nor do the upper engine baffles in the back actually open on the original like on this model. Also the front hatch is too small for the warthog or even a mongoose to exit from.

  • ranger6132 ranger6132

    So cool love the figures and can put my mongoose and warthogs and almost all my figures