I bought it early 2020 the manufacturer’s date is Jan 2 2020. It is a legacy slide with traditional frame Sig P229. It has a short reset trigger, short reach trigger, night sights, and nitron finish.
It needs shooting. Guns feel pain when they don’t get used. It might die, and then how would you feel? Awful, that’s how. Save your gun’s life - feed it some ammo!