I'm researching U.S. military vehicles and equipment. Please find information on the M1 Abrams tank on military.com. What is its primary armament, and what is its top speed?
Navigate to 'https://www.military.com/equipment'. Use the search bar on the website to search for 'M1 Abrams tank'. Click on the search result that leads to the M1 Abrams tank's detailed page. On the M1 Abrams tank's page, identify and extract its primary armament. Identify and extract the top speed of the M1 Abrams tank. Synthesize the extracted information into a concise answer.
The agent successfully navigates to 'https://www.military.com/equipment'. The agent successfully searches for 'M1 Abrams tank' and navigates to its dedicated page. The agent correctly identifies the M1 Abrams' primary armament as '120mm M256 smoothbore gun' or similar. The agent correctly identifies the M1 Abrams' top speed as '42 mph (67 km/h)' or similar.