A Sealant/ Silicone/ Caulking Gun is a tool which has been specially designed to be used with standard-sized tubes or cartridges of caulk, silicone or other sealants.

Main features include: 

 
Specifically designed for use with any standard sized cartridges 
 
Quick & easy to use design - just attach cartridge & you're ready to go
 
Sturdy metal construction for added strength & durability
 
Lightweight design is perfect for prolonged use, or for use at a whole range of angles 
 
Release trigger - stops sealant from dripping or being wasted 
 
This heavy-duty design has a more sturdy & robust construction than the non-heavy duty version for added durability & tool lifespan