Monadnock D-Jammer Tool can easily and quickly dislodge jammed shells and clear jammed semi-automatic magazines and revolver cylinders. The D-Jammer Tool can be used to un-jam an auto loading rifle or shotgun. It can also be used as a self defense tool to control an attacker by using it as a striking tool. The Shell DeJammer is part of the Monadnock brand that has been synonymous with quality as the leading supplier of batons restraints training aids accessories and the preferred law enforcement professionals choice worldwide for more than 50 years.