The device was discovered at around 1pm in a hedgerow of the lane wrapped inside a plastic bag.
Four nearby houses were evacuated whilst ATO examined and made safe the object which was declared viable. The device has been taken away for forensic examination.
Police would ask anyone who noticed any suspicious activity in the area to contact CID in Antrim on 0845 600 8000. Or, if someone would prefer to provide information without giving their details, they can contact the independent charity Crimestoppers and speak to them anonymously on 0800 555 111