I presume that Milspec is the same company that has the milspec5.com.au site, and is a subsidiary of Australian special forces. This review is based on that site.
I ordered and paid for a Trangia gas burner from the milspec5 website - the confirmation email I received acknowledges payment and the order and stated shipping information was pending. But after 3 weeks no delivery and no shipping information. I spent another week trying to contact anyone - they did not respond to several emails, or attempts via the website “contact us” page, or calls which just went to voice message.
Seems like a scam site - I’d avoid
Update: it’s been a month now and still no response. Looks like I’ve lost my money.
This definitely looks like a scam site.