The Sig Sauer P220 Full Size Frame in .45 ACP carries the straight-shooting heritage of the P220 series into a modern, duty-ready platform with a 4.40-inch carbon steel barrel and a Nitron-finished stainless slide that resists wear while delivering consistent accuracy; its alloy frame with black anodized finish and black E2 grip give a stable, ergonomic hold for extended range sessions, hunting trips where a hard-hitting .45 is desired, or service use. The DA/SA trigger with Short Reset Technology provides a deliberate double-action first pull and a crisp single-action follow-up, paired with decocker, firing pin, and manual safeties for layered security on the line or in the field. Sight choices include SIG Lite day/night sights and an optic-ready serrated slide for mounting red dots, while the SIG Rail accepts lights or lasers for low-light work. With an overall length of 7.7 inches, 30.4 ounces weight, 6.3-inch sight radius and a standard 8+1 capacity, this full-size pistol balances controllability and terminal performance; FFL required for transfer.