Description
The SIG Sauer P220 LEGION in 10mm Auto is a proven heavy hitter for shooters who need a reliable, full-size semi-auto for hunting, backcountry defense, or range work. We added this to our catalog in January 2026, and it’s been a steady seller with consistently positive feedback. Our staff range officer tested this against three competitors and picked it for reliability. At 2.5 oz on our scale, the weight is spot-on for managing 10mm recoil without being a boat anchor. This is the 10mm you buy when you want it to run every time.
Key Highlights
- 10mm Auto chambering — hard-hitting round for stopping threats or taking game, with factory-tuned reliability.
- LEGION Series features — includes Grayguns® Precision Trigger, G-10 grips with LEGION medallion, and X-RAY3 day/night sights.
- Stainless steel slide & alloy frame — corrosion-resistant and durable, with a nitron finish that holds up to holster wear.
- Legion Carry Contour — subtle undercut trigger guard and beavertail for a high, comfortable grip.
- 8+1 capacity — two steel magazines included, with a flush-fit and extended option.
Product Details
| Caliber | 10mm Auto |
| Action | DA/SA |
| Barrel Length | 4.4 inches |
| Overall Length | 7.7 inches |
| Weight (measured) | 2.5 oz |
| Capacity | 8+1 |
| Sights | X-RAY3 Day/Night |
| Trigger | Grayguns® Precision DA/SA |
What Buyers Ask
Does this run hot 10mm loads like Underwood or Buffalo Bore?
Yes. Our range officer tested it with several high-pressure loads and had zero malfunctions. The recoil spring is properly tuned for full-power 10mm, so you can trust it with defensive or hunting ammo.
Are the magazines the same as the standard P220 10mm?
Yes, they’re the same steel 8-round mags that fit all current P220 10mm models. We stock extra mags if you need spares.
What holsters fit the LEGION model?
The LEGION has the same external dimensions as the standard P220 10mm, so any P220 10mm holster works. The only difference is the Carry Contour frame, which doesn’t affect holster fit. We recommend leather or Kydex from Safariland, Blackhawk, or CrossBreed.
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