This item is acquired in-game. See its sources below.
A Rare Recipe, item level 1, binds when picked up.
First seen in build 12.0.7.68887 (Midnight (patch 12.0.7)).
Creating this may inspire combat-oriented bracer schematics.
Spell effects bound to this item, from first-party game data.
Creates 
Quality-Assured Optics Rare Cloth Head, item level 270
Using Schematic: Quality-Assured Optics teaches this recipe. The Dragon Isles Engineering recipe Quality-Assured Optics takes Artisan's Mettle, 2 Smudged Lens, 2 Handful of Serevite Bolts, 1 Greased-Up Gears and 2 Shock-Spring Coil.
Read from the World of Warcraft client build files.
The 10 recipes nearest to Schematic: Quality-Assured Optics in required skill among Recipe > Engineering; 3 of them also come from Dragonflight.
Built from the World of Warcraft client build files and recorded Auction House snapshots.
Schematic: Quality-Assured Optics uses icon file 1500870, which 400 other items also use. The 8 closest by item ID:
Schematic: Milestone Magnifiers ID 199271 · Recipe "Teaches you how to craft Milestone Magnifiers."Schematic: Giggle Goggles ID 199268 · Recipe "Teaches you how to craft Giggle Goggles."Schematic: Deadline Deadeyes ID 199272 · Recipe "Teaches you how to craft Deadline Deadeyes."Schematic: Environmental Emulator ID 199267 · Recipe "Teaches you how to craft Environmental Emulator."Schematic: Sentry's Stabilized Specs ID 199273 · Recipe "Teaches you how to craft Sentry's Stabilized Specs."Schematic: Centralized Precipitation Emitter ID 199266 · Recipe "Teaches you how to craft Centralized Precipitation Emitter."Schematic: Lightweight Ocular Lenses ID 199274 · Recipe "Teaches you how to craft Lightweight Ocular Lenses."Schematic: Wyrmhole Generator ID 199265 · Recipe "Teaches you how to craft Wyrmhole Generator."Blizzard numbers items as they are created, so the named items next to ID 199270 (199264 to 199275) were usually added in the same batch as Schematic: Quality-Assured Optics: the same quest line, zone, vendor or reward set.
Schematic: Endless Stack of Needles ID 199264 · Recipe "Teaches you how to craft Endless Stack of Needles."Schematic: Wyrmhole Generator ID 199265 · Recipe "Teaches you how to craft Wyrmhole Generator."Schematic: Centralized Precipitation Emitter ID 199266 · Recipe "Teaches you how to craft Centralized Precipitation Emitter."Schematic: Environmental Emulator ID 199267 · Recipe "Teaches you how to craft Environmental Emulator."Schematic: Giggle Goggles ID 199268 · Recipe "Teaches you how to craft Giggle Goggles."Schematic: Milestone Magnifiers ID 199271 · Recipe "Teaches you how to craft Milestone Magnifiers."Schematic: Deadline Deadeyes ID 199272 · Recipe "Teaches you how to craft Deadline Deadeyes."Schematic: Sentry's Stabilized Specs ID 199273 · Recipe "Teaches you how to craft Sentry's Stabilized Specs."Schematic: Lightweight Ocular Lenses ID 199274 · Recipe "Teaches you how to craft Lightweight Ocular Lenses."Schematic: Peripheral Vision Projectors ID 199275 · Recipe "Teaches you how to craft Peripheral Vision Projectors."The raw ItemSparse values for item 199270 in the current client build.
Read from the World of Warcraft client build files: Item, ItemSparse, Lock, Holidays, AreaTable and CollectableSourceVendor.
TheWoWDB
