The P220 Legion is an enhanced version of the gun that started it all for modern day SIG. Finished in a proprietary Legion gray coating and featuring custom G-10 grips with a Legion medallion, the P220 Legion is improved in nearly every way. The stainless-steel slide sports Sig Sauer Electro-Optics X-RAY high visibility day/night sights as well as front cocking serrations that provide greater purchase for cycling the action, clearing the firearm or conducting press checks.

The P220 in DA/SA includes a reduced and contoured Elite beavertail, which allows for a higher grip and a reduced profile, thus eliminating printing. More aggressive front strap checkering and additional checkering under the trigger guard enhance the grip. An X-Five undercut has been applied to the trigger guard, allowing for a higher grip and greater control. The P220 Legion also features low-profile decocking and slide-catch levers to reduce the risk of snagging. In addition, a solid steel guide rod adds weight where it matters most. The P220 Legion ships with three 8-round magazines.