Police said Monday that two men and a woman were arrested last Friday when officers entered the home during a weapons investigation.
Investigators say they located two long rifles, a shotgun and an M72 rocket launcher used by the military.
No ammunition for any of the weapons was located inside the home, but officers say suspected crack cocaine was also seized.
Mark James Gordon, 23, Mark James Snider, 24, and Susan Ellen Coombes, 49, are facing weapons and drug charges.
Police say the investigation is ongoing.