Even if you're a staunch defender of imperial units, you're still using metric. They were redefined in terms of metric at one point. An inch wasn't always exactly 25.4 mm, but that's how it's defined now, even in the United States. So, in a way, everyone's using metric.
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@thor The M16A2 is approximately a Meter long. Yes we embrace the funny euro units and celebrate their existence.
For my fellow Americans struggling with posting sensitive measurements, just take a quarter of the size and multiply by ten and that's close enough. Personality has probably already made them not interested.
