THE CAPTAIN STATED THAT WHILE ON A VISUAL APCH TO THE RWY WITH THE FIRST OFFICER FLYING THE ACFT, THEIR ATTENTION WAS DIVERTED TO THE GUSTY WIND CONDITION. THEY REALIZED THE GEAR WAS NOT EXTENDED AFTER HEARING A SCRAPING SOUND AND THE CAPTAIN TOOK CONTROL OF THE ACFT AND COMPLETED AN UNEVENTFUL LANDING. THE LANDING GEAR SYS WAS CHECKED AFTER THE ACCIDENT & THERE WAS NO EVIDENCE OF FAILURE OR MALFUNCTION.