The new Gunners defender completed his move from Celtic on deadline day for a reported £25million following a summer-long saga.
Much is expected of the 22-year-old, not least by Aston Villa star McGinn, who reckons his compatriot will thrive in north London once he returns from injury.
“He’s got everything,” McGinn told talkSPORT.
Click Here: afl store
“Once he gets back fit, he will run through a brick wall for Arsenal.
“Not only that, he can gallop up and down the pitch and get assists, he’s a very good crosser of the ball.
“He’s also a really humble guy who will improve all the time.”
Tierney has been recovering from a double hernia operation for several months and only made 21 league appearances for the Hoops last season.
McGinn, who scored his first Premier League goal for Villa in their 3-1 defeat to Tottenham, almost joined Tierney at Celtic last summer, but a move from Hibs fell apart after the two clubs failed to agree a fee.