Nose assemblies are essential for Huck guns to operate.
The flexibility of Huck guns to install either pin & collar Huck bolts and or structural rivets is achieved via an interchangeable nose assembly. Selection is subject to tool, fastener, and diameter size for instance the type of nose assembly for a Huck Bolt will differ from the nose required to install a structural rivet. The gun to install them is the same, only the nose assembly differs. Read more here.