The S&W 4506 is a full-sized, all-stainless steel powerhouse and a cornerstone of Smith & Wesson's 3rd Generation metal-framed pistols. Produced from 1988 to 1999, it was designed as a rugged, high-durability service sidearm for law enforcement agencies that demanded the stopping power of the .45 ACP in a platform as reliable as a revolver.
All-Stainless Steel Construction: Both the frame and slide are forged from stainless steel. This makes the 4506 exceptionally resistant to corrosion and harsh environmental conditions, though it also makes it one of the heaviest pistols in its class.
Traditional Double Action (DA/SA): Features a long, smooth double-action pull for the first shot (cocking and releasing the hammer), followed by a short, crisp single-action pull for subsequent shots.
Slide-Mounted Ambidextrous Decocker/Safety: Allows the operator to safely drop the hammer on a chambered round. Depending on the specific configuration, it may also act as a manual safety that disconnects the trigger.
Xenoy Wrap-Around Grips: Standardized with one-piece polymer grips available in either a straight or curved backstrap to accommodate different hand sizes.
Legendary Feeding Reliability: The 4506 is famous for its "steep" feed ramp and robust extractor, which allow it to cycle almost any ammunition type—including wide-mouth hollow points and even empty shell casings—without jamming.
4506 (Early): Characterized by a square trigger guard and flash-chrome finished hammer and trigger. These are the models often seen in early 90s cinema.
4506-1 (Late): Features a rounded trigger guard and a strengthened frame designed to handle the higher pressures of the 10mm Auto (shared with the Model 1006). These typically have blackened hammers and triggers.
4566: The mid-sized "Commander-length" version with a 4.25-inch barrel on a full-sized frame.
4516: The sub-compact version with a 3.75-inch barrel and a shortened grip for concealment.
The S&W 4506 holds a prominent place in American media as the "hero gun" of the 1990s and early 2000s:
Training Day: Denzel Washington’s character, Alonzo Harris, famously carries two 4506-1s in a dual shoulder holster.
The Shield: Vic Mackey (Michael Chiklis) carries a 4506 throughout the series as his primary duty weapon.
Law Enforcement: It was a preferred choice for the LAPD (as an optional carry) and the New Hampshire State Police before the widespread transition to polymer striker-fired pistols.