If your Fever case pulls have been quiet, K.O. Factory is the UMP-45 everyone remembers: thick outlines, flat color panels, and shadows that feel lifted straight from old cel animation. It’s Gunsmith-tier legendary in the Fever collection, so the craft holds up in inspect—not just a sticker slap on a grey base.

Shopping verdict

Worth targeting if you like loud, illustration-forward SMGs and you’re already on the Fever timeline. Skip or go budget if you only chase meta skins; this is vibe-first. Low float = cleaner “original art”; high float = faded reel energy—often the price gap matters more than how it reads in third person.

What to check on inspect

• Coverage: Do the cartoon panels flow across the main body without awkward cuts at the mag well or stock?
• Wear: Full 0.0–1.0 range. Factory New keeps lines crisp; higher tiers can look like a worn broadcast print—sometimes that’s the point.
• Vibe anchor: The inspect quip Good shot! matches the tone—if that lands for you, the legendary tag is bonus, not the whole story.

Where it drops

• Fever Weapon Case
• Fever Collection

Shipped 31 March 2025 with the Fever case and Spring Forward wave—handy marker when you’re completing a Fever set display.

Market notes

Hunt by name on C5GAME or Steam Community Market. Same wear tier can swing hard by float and pattern template—open a few listings side by side before you click buy.

Pairing ideas

Illustrated gloves, playful stickers, or anything “prop department” retro pairs well. Running realistic camo elsewhere? K.O. Factory is a strong contrast slot on the SMG rack.

Expert mutterings

WetQa’s Workshop identity UMP-45 | Old Cartoon is the same visual DNA—Gunsmith finish preserves those blocky reads in-game. For a compact gun, it punches above its size in spin inspect; in matches it’s more “set piece” than stealth. I’d rather pay for a float I can see than chase FN on name alone—unless you’re sealing a Fever collection row, then consistency beats bargain hunting.

Bottom line: A Fever legendary with real cartoon identity—not generic sci-fi blue. Buy when the inspect makes you smile and the tier matches your budget; don’t overpay for legendary alone.