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Two weeks after I bought the HW77K it was about time to strip it down and give it a proper lube tune. Thanks to Mario's HW97K-stripdown tutorial, it was actually quit easy to take apart. As you can see in the pictures, our friends at Weihrauch are not particularly afraid to use a little bit of grease here and there. Even the piston seal was kind of buried with grease. After a good clean I lube tuned it with Maccari lubricants. Black Tar for the mainspring, Moly Paste for the piston and spring guide and Clear Tar for all other moving parts which require lubricants.