Fenton Wallace, 32, was arrested at a property in Stamford Road on Friday, September 16.
He was then charged with three counts of possession with intent to supply Class A drugs, one count of possession with intent to supply Class B drugs, two offences of possession of a weapon and one offence of possession of ammunition.
Wallace appeared before magistrates on Saturday (September 17) and has been remanded into custody to appear at Northampton Crown Court next month.