Albion Engineering B12 1/10 Gallon B-Line Manual Cartridge Gun with 12:1 Drive 1/10th Gal Smooth Rod Cartridge Gun with 12:1 mechanical advantage drive. Full sized handle for comfortable, efficient dispensing. Half-cradle carriage to securely hold standard sized sealant cartridges. Built-in cartridge puncture wire. Designed for all standard viscosity materials packaged in 1/10 Gallon or 300ml Cartridges; Silicones, Acrylics, Polyurethane, etc. Legendary Albion design and quality make this tool a leader in value.