The next edition of The World Gunmakers’ Evening will take place on the 20th May 2026 at The Ballroom, Grosvenor House, London.

Doors open 18.00 – 22.00

Dress code: Lounge suit / Cocktail dress

Tickets include drinks and canapés all evening.

The Ballroom, JW Marriott Grosvenor House London

Located on Park Lane in the heart of Mayfair, this distinguished 5-star hotel is a landmark hotel of scale with one of the most desirable address for society and celebrity occasions. It offers exceptional accommodation, epicurean delights and sweeping views over Hyde Park. 

JW Marriott Grosvenor House London is a Park Lane icon with a story that has created a hotel as unique as its past. The former home of the Dukes of Westminster and Gloucester was originally designed and rebuilt as a hotel in 1929 by famed architects L. Rome Guthrie and Sir Edwin Lutyens and has long been associated with royalty, international dignitaries and celebrities alike.