Dumbarton hit Kelty Hearts for six at New Central Park this afternoon.
Joel Mumbongo, Kalvin Orsi and Carlo Pignatiello were on the scoresheet in the opening period.
Michael Ruth scored the fourth before the hosts were reduced to ten men with Matty Shiels and Craig McGuffie adding to the score line.
The result marks Dumbarton’s first six goal victory since 2011 as they now prepare for next weeks visit of Cove Rangers.