Hi Ben Felix makerkaren Are you going to go to market or at least have Licenced Manufacturing. I am sure you have a premium product but you would know make it the Fein / Hilti of the glue gun world. I have found two expensive products one light duty 12mm sticks the other heavy duty 18mm sticks. I'm sure there are others on the market. Good luck great show.
https://www.parrs.co.uk/stickfast-glue-gun-heavy-duty-p4576/s30089? utm_source=google&utm_medium=cpc&utm_term=xtegra-glue-gun-heavy-duty-phs093&utm_campaign=product%2Blisting%2Bads&gclid=Cj0KCQjw78vLBRCZARIsACr4cxzbGF1hFjbMwvHn1aNHyhDhYvXwlYpOJn1VnsD2o64lYchOSfqWdrwaAj5yEALw_wcB £270
Once the builds for Super Glue Gun and Mini Pinball kit are concluded, the plan is to choose one and take it to market. While each of the models you shared are interesting, they do not have all the features Ben is adding into his glue gun. Ben looked for a glue gun that did what he wanted, but couldn't find one with all the features he needed, so he decided to make one.