Jewelling : of Jewel

Example:
How can I become a better Facebook Jewel Puzzle player?

Taxonomy
barrel, pistol barrel, aluminum, rifle bolt, trigger, jewel, job, bolts, stainless steel, metal, return shipping, hood area, metal surface, 3ME, coverage, Walther, scratches, imperfections.

Defination from the web:
jeweled parts are the rifle bolt, extractor, trigger, hood area or the entire barrel and the bolt release. ... It's a fairly common misconception that jeweling removes metal, but in reality it does not — it actually raises it! ...