SPRINGFIELD — Narcotics detectives didn't need cruisers to transport four heroin suspects to the police station Thursday morning – all they had to do was walk.

That’s because the four city men, two suspected sellers and two suspected buyers, were allegedly conducting their transactions inside Armory Commons Park – an easy stroll to the station around the corner on Pearl Street.

Late last month, police arrested two men on heroin charges at the small park after an officer saw an apparent drug transaction his way to work.

Detectives, acting on another spate of complaints from residents and those who enjoy the peaceful park which boasts a fountain and graceful female figure in bronze, set up surveillance there about 10:15 a.m., Sgt. John Delaney said. They were led by Lt. Charles Cook

Two suspects were spotted right away dealing near a dumpster and two customers were also arrested as they left the park with their purchases, Delaney, public information officer for the department, said.

Police identified the dealers as Miguel Toledo, 57, of 34 Calhoun St and Jesus Ramos, 32 ,of 10 Chestnut St. They were charged with possession of heroin with intent to distribute and, violation of a drug-free zone (the park itself and conspiracy to violate drug law.

Police said the buyers were: Jose Sepulveda, 47, of 769 Worthington St. and Matthew Young, 25, of 25 St. James Ave. They were charged with possession of heroin.

The detectives confiscated 150 bags of heroin from Toledo and Ramos along with $300 cash. The buyers had purchased six bags.

Delaney said police will continue to closely monitor the park.

About a half-hour before, narcotics detectives arrested another alleged buyer and another alleged seller of drugs after setting up surveillance in the Food Zone parking lot at Belmont and Oakland streets.

The detectives, under the direction of Lt. Alberto Ayala, received information that drugs were being sold here, Delaney said.

Detectives saw a transaction and moved in to make an arrest. The two suspects fled down Oakland Street and were caught and arrested.

Charles Davis, 46 of 29 Woodside Terrace, was in possession of 6 oxycodone pills, several chunks of crack cocaine, bags of marijuana, marijuana cigarettes, $321 in cash and drug paraphernalia.

Davis was charged with distribution of marijuana, possession of marijuana with intent to distribute, possession of crack cocaine with intent to distribute , possession of oxycodone with intent to distribute and violation of a drug-free school zone (Forest Park Middle School).

Clinton Hawley, 50, of 576 Quarry Road, Becket, was charged with possession of oxycodone and possession of marijuana.

In yet another matter, police arrested a 20-year-old man at the “X” after he was allegedly attempting to sell a shotgun Thursday afternoon, to anybody who was interested, while he was standing outside the CVS store there, Delaney said.

The Street Crimes unit, under the direction of Lt. Robert Tardiff, set up a surveillance and spotted the suspect with a suitcase.

Police moved in, arrested the suspect and found that the suitcase contained a 12-gauge shotgun and 29 shotgun shells. The gun had not been reported as stolen, Delaney said.

Ricardo Baez, of no known address, was charged with possession of a firearm without an FID card, possession of ammunition, improper storage of a firearm, Delaney said.