The Sage Fly Rod CP3113M appears to be a model designation, but it’s not a current or widely recognized Sage rod series. Here are some possibilities and insights:

1. Possible Model Interpretation:
– CP3113M could break down as:

SAGE Fly Rod CP3113M

– CP: Might stand for a series (e.g., “Circular” or a custom/prototype line).
– 3113: Likely the rod specs (e.g., 3-weight, 11’3″ length, though this is speculative).
– M: Could indicate “medium” action or a modular design.

Note: Sage typically uses clear series names (e.g., X, R8 Core, Trout LL) followed by length/weight (e.g., 590-4 for a 9′ 5-weight 4-piece).

2. Potential Scenarios:
– Custom/Prototype: Some Sage rods are custom-built or prototypes (e.g., for guides or team members) and may have unique codes.
– Mislabeled/Discontinued: Older or regional models (e.g., Sage Circa or Pulse) might use similar codes.
– Typo: Could it be Sage R8 Core 3110-4 (a 3-weight, 11′ nymphing rod)?

3. What to Do Next:
– Check the Rod Tube/Blank: Sage rods usually have labels with full model names.
– Contact Sage Customer Service: Provide the exact code for clarification ([Sage Contact](https://www.sageflyfish.com/contact)).
– Look for Similar Models: If it’s a nymphing rod, compare to the Sage ESN (Euro Nymphing) or Trout LL series.

4. If You’re Shopping:
– Verify the seller’s description. Unlisted models could be counterfeit or mislabeled.

Let me know if you have more details (e.g., rod length, action, or where you saw this model), and I can refine the answer!