5. SLG 66 - the Selbstladegewehr 66 was a specialist marksman's weapon, using the standard 8.5mm German imperial round but fired through a self-loading, gas-operated long rifle which could be fitted, as here, with a suppressor and optic sight. The standard German long arm at this time was the SLG58, commonly known as the "Muskete", which was a fairly ordinary analogue to IOW's more complicated and difficult to manufacture assault rifles. Think SiG or SA-80, with larger rounds.
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