Used, sold as described above. Look it over at your dealer when you pick it up.
Can I buy it in United States?
Yes. It ships to a licensed FFL dealer in United States; you pick it up there after the background check. Handguns ship to a licensed FFL dealer only, and the buyer must be at least 21 and pass a background check at pickup; some states add a permit, a certificate or a waiting period.
Is it in stock?
Yes, at $659.99. Orders leave within 1-2 business days; shipping is free over $999.