Police say someone broke into the Eagle 1 Law Enforcement Supply Store in the 4400-block of Craftsman Drive around 3 a.m. Saturday.
The thief got away with 19 firearms.
The ATF is now offering a reward of up to $5,000 for anyone who has information the leads to an arrest and conviction.
Eagle 1 is a federally licensed firearms dealer.
Anyone with information about this crime may report it to the ATF Raleigh Field Office at (704) 716-1060, the ATF Gun Hotline at (800) 283-4867, or the Raleigh Police Department at (919) 834 -4357.