Man at Arms is a reality-style web series where the folks at Baltimore Knife and Sword build some of the weapons you see in games and movies. This week, they’ve constructed one of the massive Gravity Hammers from Halo.

As a somewhat competent amateur when it comes to prop building, the work these guys put into this particular prop just blows me away. It looks amazing, and very, very heavy. It looks like it literally requires Spartan armor to wield it.