It almost certainly means “proofed” (a common typo/misspelling in listings), not “proted.”

What “proofed” means on a pistol

In firearms terms, proofed = the gun has been proof‑tested by an official proof house.

  • A proof test is an over‑pressure test where the barrel/receiver is fired with a special high‑pressure cartridge to make sure it won’t burst or fail dangerously.
  • If it passes, the proof house stamps proof marks on the gun (often on the barrel, frame, or receiver).
  • Listings will say things like “proofed in [year] ,” “recently proofed ,” or “CIP proofed ,” especially for older or imported guns.

So a description like “pistol description says proted” is very likely trying to say:

“This pistol has been proof‑tested and is marked as such.”

Why sellers mention it

Sellers highlight “proofed” because:

  • It shows the gun has been checked for structural safety by a recognized authority.
  • For antique or obsolete‑caliber guns, many ranges and dealers want to see a current proof before allowing use or sale.
  • It can affect value and legality in some countries (e.g., UK/EU rules around proof dates).

How to confirm on the actual gun

If you have the pistol (or clear photos), look for:

  • Small stamps/marks on the barrel/frame with symbols like:
    • Crown/proof house logos (e.g., UK Birmingham/London proof marks)
    • Letters/numbers indicating year and proof type
  • Phrases like “NITRO PROOF ,” “CIP ,” or national proof house marks.

If you can share the exact wording or a photo of the markings, I can help interpret what the proof marks likely mean. TL;DR: “Proted” in a pistol description is almost certainly a typo for “proofed,” meaning the gun has been officially proof‑tested for safety and bears proof marks. Information gathered from public forums or data available on the internet and portrayed here.