This study examined the implication of the scourge of awful governance in Nigeria, and discusses the threats of proliferation of small arms and light weapons vis-a-vis less efficient governance by drawing a synergy between both variables, and unveiling the menace of proliferation of SALW as a devastating implication of unproductive governance in Nigeria. This paper adopted interviews as a tool for data collection and also retrieved valuable information’s from readymade works of scholars. This paper investigated the causes of proliferation of small SALW in Nigeria, and discussed the constitutional failure of Nigerian government as the propellant of arms proliferation in Nigeria.. The study also examined the impacts of proliferation of SALW in Nigeria and finally articulate recommendation’s that will serve as a panacea to the menace of proliferation of SALW, and also serves as the solution to the effect of unproductive governance in Nigeria.