AM 500 (17'''), Balance staff, Ronda: 59
- Manufacturer Ronda no: 59
- Total length: 433
- Fits cal: 500, 501, 502 (17''')
- A: = 433 (ronda A).
- B: = 230 (ronda B).
- F: = 81 (ronda K).
- G: = 111 (ronda J).
- H: = 55 (ronda G).
Conversion: Ronda to DCN
- A = A
- B = B
- J = G
- G = J
- K = F
