Designed by Samuel Arnold Finley and David Jerome Spence [fr], the armoury was declared a National Historic Site of Canada in 2008.

[2] The armoury is home to the regiment's museum, which was opened on 8 November 1949 by the then-colonel of the Black Watch, Field Marshal Lord Wavell.

[3] On May 9, 1963, the armoury's exterior was damaged as part of a campaign of terrorist bombings in Montreal by the Front de libération du Québec (FLQ).

[4][5] In March 1983, two Molotov cocktails were thrown at the building, with a communique issued to local media claiming to be on behalf of a group carrying on the revolutionary politics of the FLQ.

[6] Quebec politics came into play again in 2009, when a protest by 200 demonstrators disrupted a Remembrance Day visit to the armoury by Charles, Prince of Wales and the Duchess of Cornwall.