Shopping for a Roman Gladius sword for sale? Focus on authenticity, blade material (high-carbon steel), tang construction, and replica versus original design. Check blade length, balance, and weight for historical handling. Inspect hilt and scabbard craftsmanship and seller reputation, reviews, and return policy. Consider intended use—display, reenactment, or cutting—and budget. Proper maintenance (oiling, storage) preserves the blade. Choose a trustworthy maker to secure quality and historical accuracy and provenance verification.