The Callaway RAZR X Muscleback Iron combines a set spanning 3-9 iron, a standard length of 39.00 in, and a listed swing weight of D2 (steel).
Iron • 2011 • RH/LH
Key specifications
Visual model specs
Built only from this model’s supplied specifications.
Club information
| Manufacturer | Callaway |
|---|---|
| Model | RAZR X Muscleback |
| Club type | Iron |
| Release year | 2011 |
Head, loft and weighting
| Set makeup | 3-9 iron |
|---|---|
| Lie angle | 60.0° |
| Swing weight | D2 (steel) |
Shaft, grip and setup
| Standard length | 39.00 in |
|---|---|
| Stock shaft options | True Temper Dynamic Gold steel; Fujikura Motore Speeder graphite |
| Stock grip | Callaway Universal grip |
| Hand availability | RH/LH |
Construction and forgiveness
| Face / material / construction | Forged carbon steel muscleback iron; single-piece forged construction |
|---|---|
| MOI / forgiveness information | Low-to-moderate forgiveness; compact muscleback design prioritizes workability and feel over maximum MOI |
Data note: Golf club specifications can vary by loft, shaft, flex, hand, set composition and market. Where the source row lists multiple configurations, the complete supplied value is retained in the tables. Representative benchmark charts normalize multi-club sets to a consistent comparison point.
