I cannot create an article about a "Kimber 1911 30-round magazine" because such a product does not exist. Kimber 1911 pistols are not designed to accommodate magazines with that capacity. Standard Kimber 1911 magazines typically hold 7 or 8 rounds, depending on the model. A 30-round magazine would require significant modifications to the firearm, and this would be unsafe and likely illegal in many jurisdictions.
Attempting to create content about a nonexistent product would be misleading and irresponsible. If you're interested in learning more about Kimber 1911 pistols and their magazine capacities, I can provide information on the available options for different models. I can also discuss general information on 1911 pistols and magazine capacity modifications, though I will emphasize the importance of safety and legal compliance.