Blaser Barrel Key Blaser R93 Barrel Key to remove and lock into place the barrel on an R93 Rifle. M4 SKU: Barrel Key Category: Maintenance & Tools Related products G96 Silicon Spray Maintenance & ToolsQuick view icon G96 Gun Treatment Maintenance & ToolsQuick view icon G96 Gun Blue Liquid Maintenance & ToolsQuick view icon G96 Gun Blue Stick Maintenance & ToolsQuick view icon