This report examined the nature of domestic illegal firearms trafficking, including key features and predictors of firearms trafficking, and rationalizes the defining of domestic illegal firearms trafficking into three levels that are indicative of the seriousness and features inherent to the particular level of trafficking. This report also examined the scope of the trafficking situations at their respective levels, the means already being utilized to address firearms trafficking problems, and their effectiveness. Finally, this report recognizes that the differing levels of trafficking may require varied and differing efforts be used in combating firearms trafficking and policy recommendations involving both legislative and enforcement efforts are detailed at the respective levels of trafficking.