The Sig Sauer P220 Legion is a full-size .45 ACP pistol built on an aluminum alloy frame with a Legion Gray PVD finish. The DA/SA action, X-RAY 3 day/night sights, and G10 grip are the distinguishing Legion Series features. Three magazines are included. 
 

Key Specifications: 

• Caliber: .45 ACP 
• Capacity: 8+1 rounds 
• Barrel Length: 4.4 inches 
• Weight: 30.4 ounces (3.9 lbs) 
• Frame Material: Aluminum Alloy 
• Finish: Legion Gray PVD 
• Sights: X-RAY 3 Day/Night Sights 
   

Detailed Features: 

The DA/SA trigger system means the first shot fires double-action with a longer, heavier pull; subsequent shots fire single-action with a shorter, crisper break. The X-RAY 3 sights use a green tritium front dot paired with an orange-outlined rear, which gives fast target acquisition in both bright and low-light conditions. 
 
The G10 grip panels provide a secure hold without being abrasive during extended sessions. The thumb safety adds a mechanical block for those who want it. The aluminum frame at 30.4 ounces is heavier than polymer-framed alternatives, which helps manage .45 ACP recoil but is a real consideration for daily carry.

Owner feedback on the P220 Legion is consistently strong, with a few recurring caveats.

Build quality and the feel of the gun in hand are the most commonly praised attributes -- owners describe it as solid and well-balanced for a full-size pistol. The DA/SA trigger gets high marks, particularly the single-action break after the first shot, which owners use as their reference point for what a production trigger should feel like. The X-RAY 3 sights are frequently called out as a practical improvement over standard three-dot sights. Accuracy and reliability across ammunition types are consistently positive across owner reports.

The Legion Gray finish is appreciated for its appearance; it photographs well and wears better than many standard finishes according to long-term owners.

The price is the most common reservation. Owners who bought it generally believe the quality justifies the cost, but it's a meaningful investment compared to competing full-size .45 ACP options. Weight at 30.4 ounces also comes up -- owners who carry it daily note it's heavier than a comparable polymer-framed pistol, which matters for all-day IWB use.

Aftermarket accessory support is considered good, and owners discuss optic cuts, holster options, and grips more than most pistols in this segment. Overall the P220 Legion has a strong reputation among .45 ACP enthusiasts.