"It's put me through 20 years, and I'm still alive," said Officer Gregg Melita, 41, who not only carries a Ruger Police Service revolver, but the old "dump pouches," two leather carriers that hold loose cartridges. "This is when guns were guns, and cops were cops," he said. "The new guys don't even know what dump pouches are. They go, 'Hey, what's that hold?"' He chuckled. "'Bullets, kid."'

The design of a 9-millimeter magazine, with a spring pushing cartridges in single file into the chamber, makes it susceptible to malfunction, to jamming. With a revolver, there is always another round ready to fire, no matter whether the one before it did.

"These aren't Ferraris," Inspector Silks said. "These are Chevrolets."

Police Commissioner Raymond W. Kelly ordered the switch to 9-millimeter pistols 11 years ago, and learned to shoot one himself. But it is his revolver, a Colt Detective Special, that he carries today, under the slight break in his trouser leg at the left ankle.

"It's easier to carry, for me, anyway, the revolver. I've carried it for a long time," he said. "I actually won it in the Police Academy, many years ago," graduating first in his class. It is inscribed: "Bloomingdale Trophy won by Probationary Patrolman Raymond W. Kelly. May 15, 1967."

As for the decline of the revolver, he said, "I don't think it means very much, tactically. I don't see that much difference in shooting a semiautomatic handgun or a revolver. The difference, people will tell you, is dependability. You take a revolver that's been in a drawer for 100 years, take it out, pull the trigger, and it's going to go off. Automatics have the potential, probably more so than revolvers, for jamming. At least, that's what people think."

Officers with revolvers say that yes, they feel more comfortable with a gun that is virtually malfunction-proof, and that six shots at a time, along with their extra six-shot speed-loaders, ought to be enough. "After 18 rounds, if I can't hit him, I'm in big trouble," said Officer Sean Murtha, 40, who carries two speed-loaders. (And he would be a statistical aberration. To date in 2004, the average number of rounds fired by a single officer in a police shooting is 2.8, down from 4.6 in 2000 and 5.0 in 1995.)

But there is something else about the gun. It makes a statement.

"It has to do with identity," said Officer Cruz, from the 88th Precinct in Fort Greene in Brooklyn. "You see someone with a .38, you know they've got some time on them."