Passage: Magach 3: Modernized M48A1/A2C/A3. The modifications included British 105 mm L7 cannon, low profile commander's cupola, upgraded communication suite, a 750 hp diesel engine Continental AVDS-1790-2A with Allison CD-850-6 transmission. They were eventually fitted with Blazer ERA.

Question: Modifications included what kind of cannon?
British 105 mm L7