Gun Proof Certification

PROOF OF YOUR FIREARMS QUALITY

We’re now offering a Certificate of Gun Proof as part of the gun proving process. A simple, official way to show that your firearm has been fully tested and meets all the safety standards required by law.


If you've had a gun proved by London in the past you may submit it for viewing and ask for a certificate to be issued.


The Certificate serves as an additional layer of trust, especially valuable when exporting, selling high value items, or building customer confidence. It is added to our permanent records and can be presented alongside sales documentation or retained for future provenance.

Gun Proof & Reproof

We proof guns for dealers, the military, precision target rifles, best gun makers, importers and auction houses.

Deactivation

We deactivate, and certify the deactivation of all kinds of firearms, adhering to the latest standards.

Military Gun Proof

We have a specialism in military gun proof, including remote proof services for manufacturers, in both small and high volume.

Gun Importing & Exporting

We proof all kinds of imported guns and with pre-booking provide a same day instant proof service.

Proof House Governance

A court with more than 800 years experience in the gun trade.

The Worshipful Company of Gunmakers

The Livery of the Worshipful Company of Gunmakers

The Certification Panel

The most experienced gunmakers in the UK certifying the next generation.

The McMillan Trophy

Awarded at the discretion of the Certification Panel for exceptional work.

The London Proof House is a Georgian building located in Whitechapel, and it is the historic home of British proof, inspection, ammunition control and deactivation of firearms.


The Proof House and its Proof Assistants work for the civilian, uniformed services and military sectors. All overseen by the Proof Master, the Master and Wardens, and Court of assistants, as defined by our Royal Charter granted on the 14th of March 1637 by King Charles the 1st during his reign.

Our Heritage