The following weapons were used in the anime series Detective Conan: The Culprit Hanzawa:
Heckler & Koch P2000
The Heckler & Koch P2000 is seen in "Dress Up Tonight". Tokyo Metropolitan Police Public Security Bureau (PSB) officers use the P2000 as their sidearm.
Heckler & Koch P2000 (early model) - 9x19mm
Hanzawa's imagine spot in "Dress Up Tonight" includes a P2000 with a hammer.
Hanzawa's day continues to suck even more after being cornered by the PSB.
Heckler & Koch USP
The Heckler & Koch USP is seen with a hostess after Ran starts to display superhuman strength in "Beika Town Rhapsody".
Heckler & Koch USP - .40 S&W
Lady decide to dare fire at Ran in "Beika Town Rhapsody". Note that it has wood-type grips.
Nambu Model 60
The Nambu Model 60 is seen with the Tokyo Metropolitan Police Department.
Nambu Model 60 Snub-nose - .38 Special
Hanzawa imagines being hunted by TMPD officers in "The Jet-Black Shower Scene".
Smith & Wesson Model 36
A Smith & Wesson Model 36 appears to be seen in a pawn shop in "Beika Town Rhapsody".
Smith & Wesson Model 36 with 3" Barrel and square butt - .38 Special
The revolver being openly sold in Beika City with a box of ammo on the display case in "Beika Town Rhapsody". The episode basically makes fun of how the city is a wretched place to live in like Gotham City.
A badly animated M16A2 is seen with a silhouetted armed suspect about to conduct a heist in "Beika Town Rhapsody".
Colt Government Model HBAR, the A2 version of the AR15 Civilian Rifle - 5.56x45mm
The silhouetted armed suspect wearing a facemask in "Beika Town Rhapsody".