Lee Parker, 39, of Leybourne Drive, Bestwood, appeared at Nottingham Crown Court on Thursday 9th April and admitted conspiring to rob the Ambergate Post Office, in Ambergate Road in Beechdale, on 13th October last year.
He was sentenced on Friday 10th April.
During the incident, the postmaster received a cut to the head caused by a blow from the butt of a gun used by a man who entered the post office shortly before midday on 13th October and threatened him and made demands for money.
No money was handed over and the offender fled empty-handed.
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Detectives from Notts Police recovered a distinctive orange and black moped used by the offender to travel from the scene and abandoned in Wollaton minutes after the attempted robbery.
Their extensive and detailed enquiries then established that Parker had been involved in the purchase of the moped the night before the robbery took place.
Det Chf Insp, Karen Pearson, said: “This is an excellent outcome at the end of an investigation during which Parker made considerable efforts to try and cover his tracks in order to escape detection.”
“Thanks to the tenacity of the investigation team and the excellent information we had received from members of the public, we were able to link Parker to the robbery through the moped which the offender used to travel to and from the post office.”
“We must also pay tribute to the courage of key witnesses, not least the postmaster who was injured in the struggle with the offender.”
“It is through their assistance that we have been able to ensure that Lee Parker has been compelled to plead guilty and has received a significant sentence for his role in this violent attempted robbery.”