McConville has scored twice in 14 appearances for Accrington Stanley this season
Accrington made it five wins from six league games as they condemned Barnet to a third straight defeat.
Sam Togwell inadvertently put the visitors in front when he turned a Josh Windass cross into his own net.
The hosts quickly levelled when Michael Gash fired in under the body of Accrington goalkeeper Jason Mooney from a Mauro Vilhete through ball.
Sean McConville scored the wining goal for Stanley when he fired in off a post after racing on to Billy Kee's pass.
Barnet boss Martin Allen told BBC Radio London:
Martin Allen on Barnet v Accrington
"I thought it was a disappointing performance, far too many players weren't on form, didn't play well.
"It's all well and good people saying we played well in the last 20 minutes - it's too late.
"The last home game here we were absolutely superb and put on a great performance for our supporters, and today for some reason we were second best all over the place."
- Published20 June 2016
- Published7 June 2019
