Yeah, George Mason University does provide scholarships based on merit. Here are some of them:

Mason Scholarships
Requirement for maintenance: grade point average of at least a 2.75
Separate application needed: No
Application deadline: April 30

George Mason University provides aids at an average of 14717 per student meeting 62% of students need. 96% of students with need receive financial aid at an average of 7349 need-based grant. They also provide other scholarships including The Peter C. Forame Student Leader Scholarship and Black Scholars Endowed Scholarship.