The dangerousness of domestic violence escalates when suspects use weapons against victims or responding officers. Nevertheless, only a few studies have examined the dynamics of weapon use in domestic violence. While supporting the situational approach, the limited literature and relevant theories suggest the need for weapons classification and multilevel research. Using over 9,400 domestic violence cases across 423 census tracts that were responded to by the Houston Police Department in 2005, hierarchical linear models examine the correlates of weapon use by suspects. Results indicate that situational and neighborhood factors are distinctively associated with each type of weapon. Implications for future research and policy are discussed.