Smith & Wesson 645
Smith & Wesson · Pistol · Discontinued · 1985
Also known as: Model 645, S&W 645
Overview
The Smith & Wesson 645 is a subcompact semi-automatic pistol chambered in .45 ACP, introduced by Smith & Wesson in 1985. The pistol features a stainless steel frame and a carbon steel slide, providing a durable platform designed for years of reliable service in both duty and civilian applications. The 5.0-inch barrel maximizes the ballistic potential of the .45 ACP cartridge while providing a generous sight radius that enhances accuracy at all practical distances.
Specifications
| Weight (empty) | 1090 g (38.4 oz) |
| Overall Length | 216 mm (8.50") |
| Barrel Length | 127 mm (5.00") |
| Height | 140 mm (5.51") |
| Width | 34 mm (1.34") |
| Action Type | Short Recoil |
| Firing Mechanism | Double Action Single Action |
| Trigger Type | Double Action |
| Trigger Pull | 20 N (4.5 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 | Stainless Steel |
| Slide Material | Carbon Steel |
| Barrel Material | Carbon Steel |
| Finish | Blued Slide Stainless Frame |
Calibers
- .45 ACP · primary — also known as .45 Auto, 11.43x23mm
Features
- Firing modes: Semi Automatic
- Feed systems: Detachable Box Magazine
- Safety mechanisms: Ambidextrous Safety, Firing Pin Safety
- Features: Double Stack Magazine, Two Tone Finish, Accessory Rail, Ambidextrous Slide Stop, Textured Grip, Loaded Chamber Indicator, Reversible Magazine Release, Manual Thumb Safety
Production
Production years: 1985-1988
Origin
Country of origin: United States
Discontinued: 1988
Notes
The 645 was the basis for the Model 745 competition pistol and later third-generation 4500 series pistols. The two-tone finish was a signature look of this model.
Background
Smith & Wesson has been manufacturing firearms in Springfield, Massachusetts since 1852, making them one of the oldest and most respected names in the American firearms industry, with their revolvers and pistols serving in virtually every major conflict and law enforcement agency worldwide.