Not a professional grader. My opinion these grade NM.
Uncanny X-Men (1963 1st Series) #510 2nd Print Variant
SECOND PRINTING 'Sisterhood': Part 3 of 4 - Cover by GREG LAND. Written by MATT FRACTION. Art by GREG LAND. SIEGE! The Sisterhood executes a massive raid on the Graymalkin Facility, taking their fight to the Uncanny X-Men, and you won't believe the ferocity. No one is safe! Everybody fights! But why? How? What do they want? And how long can violence at such an insane level last? Oh, about most of the issue.