Heavy duty 5/16" square drive rod, driven by a pair of hardened steel grip plates
Rotating 30oz (18" long) steel barrel for convenience and durability
Double set of oiled leather pistons stiffened by a trio of steel washers for reliable suction during loading and dispensing
Conical ejector for more complete dispensing
Standard 1/2" ID round metal nozzle
Threaded steel front cap
High-quality bulk caulkgun. Gun length when empty is 26.5". When full, gun length is 43.5".