Smith & Wesson Model 3904
Smith & Wesson · Pistol · Discontinued · 1989
Also known as: Model 3904
Overview
The Smith & Wesson Model 3904 is a full-size semi-automatic pistol chambered in 9x19mm Parabellum, introduced by Smith & Wesson in 1989. In S&W's Third Generation numbering system, this model's designation indicates aluminum alloy frame with carbon steel slide, compact configuration.
Specifications
| Weight (empty) | 794 g (28.0 oz) |
| Overall Length | 191 mm (7.52") |
| Barrel Length | 102 mm (4.02") |
| Height | 138 mm (5.43") |
| Width | 34 mm (1.34") |
| Action Type | Short Recoil |
| Firing Mechanism | Double Action |
| Trigger Type | Double Action |
| Magazine Capacity | 8 rounds |
| Magazine Type | Detachable Box |
| Muzzle Velocity | 360 m/s (1181 fps) |
| Muzzle Energy | 481 J (355 ft·lbf) |
| Effective Range | 50 m (55 yd) |
| Barrel Rifling | Right Hand |
| Rifling Twist | 254 mm (10.00") |
| Number of Grooves | 6 |
| Frame Material | Aluminum Alloy |
| Slide Material | Carbon Steel |
| Barrel Material | Carbon Steel |
| Finish | Blued |
Calibers
- 9x19mm Parabellum · primary · 9mm NATO — also known as 9mm Luger, 9mm NATO, 9x19mm
Features
- Firing modes: Semi Automatic
- Feed systems: Detachable Box Magazine
- Safety mechanisms: Slide Mounted Decocker Safety, Magazine Disconnect, Firing Pin Safety
- Features: Third Generation Design, Aluminum Frame, Single Stack Magazine, Fixed Rear Sight, Ambidextrous Safety
Production
Production years: 1989-1991
Origin
Country of origin: United States
Discontinued: 1991
Notes
The 3904 was quickly superseded by improved variants in the 3900 series. The third-generation design brought significant improvements in ergonomics, sights, and reliability over earlier S&W autos.
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.