Smith & Wesson Model 4546
Smith & Wesson · Pistol · Discontinued · 1990
Also known as: Model 4546
Overview
The Smith & Wesson Model 4546 is a full-size semi-automatic pistol chambered in .45 ACP, introduced by Smith & Wesson in 1990. It is part of Smith & Wesson's Third Generation semi-automatic line, offering the proven .45 ACP cartridge in a modern double-action platform that combined the stopping power favored by .45 enthusiasts with the operational advantages of a DA/SA trigger system. The double-action-only trigger provides a consistent pull for every shot, simplifying training and reducing the risk of negligent discharge under stress - features that made DAO models popular with law enforcement agencies. competing against established .45 ACP platforms like the 1911 and SIG P220, these pistols offered higher capacity and double-action operation that appealed to agencies and shooters wanting modernized .45 ACP duty guns. In S&W's Third Generation numbering system, this model's designation indicates all stainless steel construction.
Specifications
| Weight (empty) | 1105 g (39.0 oz) |
| Overall Length | 216 mm (8.50") |
| Barrel Length | 127 mm (5.00") |
| Height | 138 mm (5.43") |
| Width | 34 mm (1.34") |
| Action Type | Short Recoil |
| Firing Mechanism | Double Action Only |
| Trigger Type | Double Action Only |
| Trigger Pull | 49 N (11.0 lbf) |
| Magazine Capacity | 8 rounds |
| Magazine Type | Detachable Box |
| Muzzle Velocity | 260 m/s (853 fps) |
| Muzzle Energy | 477 J (352 ft·lbf) |
| Effective Range | 50 m (55 yd) |
| Barrel Rifling | Right Hand |
| Rifling Twist | 406 mm (15.98") |
| Number of Grooves | 6 |
| Frame Material | Aluminum Alloy |
| Slide Material | Carbon Steel |
| Barrel Material | Carbon Steel |
| Finish | Blue |
Calibers
- .45 ACP · primary — also known as .45 Auto, 11.43x23mm
Features
- Firing modes: Semi Automatic
- Feed systems: Detachable Box Magazine
- Safety mechanisms: Firing Pin Safety, Magazine Disconnect
- Features: Third Generation Design, Dao Trigger, Aluminum Frame, Blued Slide, Single Stack Magazine
Service history
Operators
- Various U.S. Law Enforcement Agencies · adopted 1990
Production
Production years: 1990-1999
Origin
Country of origin: United States
Discontinued: 1999
Notes
The '46' suffix indicates full-size aluminum frame with DAO trigger and blued carbon steel slide. More affordable and lighter than all-stainless DAO models.
Background
Smith & Wesson's Third Generation pistols used a sophisticated model numbering system where each digit conveyed specific information about caliber, frame size, action type, and materials - essentially encoding the entire specification sheet into four digits.