Can a Thunder 9 be converted to a Thunder 40, or vice versa?

Bersa and Eagle Imports Inc. recommend that you not try this conversion. It is a complicated process to convert your Thunder 9 to a 40 (or vice versa) and requires multiple parts and the skills of a qualified gunsmith to do this correctly. If not modified correctly, the gun will not feed properly.

A modifications such as this will invalidate your warranty.

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