This fits your .
Makes fast permanent bonds. Glue, caulk, and set time 25 to 60 seconds. No shelf life limit like tube and bottle glues.
Extra strength adhesive. Standard diameter glue sticks in 4" length. Used by GR20, GR25, GR90 & GR100 Glue Guns.
Stanley GS500 6-Pack 4-Inch Formula II-Super Strength Glue Sticks - B000I1QA4G