HK MP5K operational briefcase.
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Previously:
https://www.homemadetools.net/forum/...290#post181080
https://www.homemadetools.net/forum/...947#post194757
https://www.homemadetools.net/forum/...933#post148789
https://www.homemadetools.net/forum/...967#post179674
https://www.homemadetools.net/forum/...680#post151829