D&D4 Wiki
Attack bonus if proficient +2
Weapon dice ([W]) 1d12 (primary end)
1d6 (secondary end)
Type melee
Handedness double
Proficiency category superior
Weapon groups (primary end)
(secondary end)
Weapon properties defensive, stout (primary end)
off-hand (secondary end)
Price 10 gp
Weight 8 lb.

An urgrosh is a superior double melee weapon in the axe and spear weapon groups.[AV:9][U :11/2009]

The primary end of an urgrosh is a defensive weapon, so a character proficient with the urgrosh gains a +1 bonus to AC while wielding it. The primary end is also a stout weapon, so the primary end counts as a two-handed weapon, for example, benefiting from feats and class features that affect two-handed weapons. The secondary end is an off-hand weapon, so either end can be used to make attacks.

No class has proficiency with the urgrosh as a class trait, but any character can become proficient by taking a Weapon Proficiency feat.

The November 2009 rules update reduced the weapon die for the secondary end of the urgrosh from 1d8 to 1d6, made only its primary end defensive, and added the stout property to its primary end.