What You Are Actually Comparing
Searching for a Milwaukee heat gun usually means one of two things. Either you are already deep in the M18 ecosystem and want the red version of every tool you use, or you assume Milwaukee's construction reputation automatically translates into the best answer here too.
That assumption is understandable. It is just incomplete.
The Milwaukee M18 Compact Heat Gun was built for construction heat tasks: loosening materials, shrinking larger tubing, softening adhesives, working where cordless mobility matters more than temperature precision. If that is your job, the Milwaukee case is easy to understand.
If your real job is solder seal connectors, heat shrink joints, automotive wiring, trailer harnesses, or marine repairs, the comparison changes. Now the important questions are different: can I trust the temperature, will the tool land on the connector activation zone every time, how heavy is the tool in tight spaces, and will it keep running without turning the whole project into battery management?
SolderStick was designed around those questions. It is built to reach one fixed temperature, 392°F (200°C), the solder-seal working point, with a digital readout that shows the temperature climbing to it, included concentrator and reflector nozzles, and unlimited corded runtime for $39.99. There is no dial, because there is no second temperature you would ever want for this job. Milwaukee gives you cordless M18 platform convenience for $99 bare or $180+ once you are truly job-ready.
So this page is not red-vs-blue brand theater. It is a job-fit comparison built around five criteria: ready-to-work cost, connector-safe temperature control, runtime, ergonomics in awkward spaces, and the honest situations where Milwaukee's cordless strength still matters.