The Performance Center Model 640 Black Edition features an E-100 black Cerakote finish; no internal lock; cylinder is cut for full moon clips; fluted barrel; Dovetail Tritium front & rear night sights and a black synthetic grip. Includes moon clips.
| Frame Size | J-Frame |
| Frame Description | Stainless Steel Frame |
| Caliber | 38 Special +P |
| Barrel Length Range | 2" to 2.99" |
| Grips | Black Finger Grooved |
| FireArm | yes |
| Capacity | 5 |
| Hammer Style | Concealed |
| Barrel Finish | Black Cerakote |
| Barrel Length | 2.13" |
| OAL | 6.63" |
| Cylinder Finish | Black PVD |
| Weight Range | 1 lbs to 1.99 lbs |
| Sights | Tritium Night |
| Weight | 1.44 lbs |
| Action | DAO |
