Does a nice job quickly firing off the football in the run game and getting around opposing defensive linemen when asked to scoop block and seal inside. Has a good first step, manages to keep his pad level down and can consistently get around his target. Demonstrates a bit of grit to his game as well, works hard to keep his hands on defenders, works his legs till the whistle and loves to finish blocks. Displays good range when asked to get out to the second level, with the body control to break down in space and hit a moving target. However, he isn't a real violent cut blocker and consistently struggles to get into the legs of opposing linemen.
Impression: An undersized center who lacks power at the point of attack in all areas of the game. But, is a good athlete who looks like an ideal fit for a zone-blocking scheme as a solid reserve-type lineman."
Positive: Productive and durable college lineman with limited upside for the next level. Blocks with good lean, gets leverage on defenders, and quickly sets up in pass protection. Immediately gets his hands into defenders, explosive at the point, and keeps his feet moving. Effective with shotgun snap.
Negative: Lacks a dominant base and gets pushed back off the line of scrimmage by bigger opponents. Cannot sustain blocks or finish them.
Analysis: McMahon was a solid lineman on the college level but has size and athletic limitations. He projects as a backup for a zone blocking scheme."