In this picture above you see a large glue gun which is
common in house framing. This glue gun holds larger tubes of glue and is
more economical when using large quantities of glue, sealants, epoxies
This is the most common caulking gun and can be purchased at any home improvement or hardware stores. You will be able to find all types of caulking and glues for this caulking gun at your local home-improvement center.