Police are going over surveillance video after a persistent thief targeted the Canadian Tire in Dartmouth Crossing.
The store was closed for the holidays when it was first broken into on Christmas Eve.
The suspect made his initial attempt just after 8:30 p.m. on December 24, when he smashed the door of the store to get in but was scared off by the alarm.
However, it appears the same person came back on Christmas Day and took some guns and ammo.
Police say their suspect was wearing the same clothes both times.
The man is described as a heavier set, wearing gray sweat pants, a black hoodie and a black ski mask.
Investigators are asking anyone who has any information on this incident or the suspect to contact police
