Kilwinning boss David Gormley was left ruing 'fine margins' as Forfar brought an end to the West of Scotland League outfit's first-ever Scottish Cup adventure.
Tomas Brindley's superb first half strike and a bizarre Dominic Boland own goal had the visitors 2-0 in front after 64 minutes of Saturday afternoon's second round tie at Buffs Park.
But the League Two side never had it easy at any stage and were made to sweat when Thomas Collins' diving header halved the Loons’ advantage in the dying stages to raise hopes of a grandstand finish.