SIG Sauer P211-GTO RXSL 9mm, 2011 Platform, Steel Frame, 4.4 in Bull Barrel with Mach3D Compensator, Optic-Ready, 21+1
This recent-release SIG Sauer P211-GTO RXSL is a full-size, 2011-platform, single-action pistol built on a steel frame and configured for high-capacity 9mm performance. It stands out with an optic-ready SIG-LOC Pro interface, a 4.4 in bull barrel capped by a factory Mach3D compensator, a front XRAY3 night sight, and a flared alloy grip module that feeds from 21-round steel magazines.
Condition
Overall Condition: Very good condition, showing only light, superficial signs of prior handling or use.
Bore Overall Condition: Excellent - Clean, mirror finish, no signs of wear.
Bore Rifling: Excellent Rifling - Sharp lands and grooves.
Specific Condition Notes: The exterior shows a few minor scratches and small blemishes from prior handling.
What's Included
- Three 21-round magazines
- SIG Sauer hard case
- Manual
- Recoil spring
- Lock
The P211-GTO RXSL uses a steel frame with a full-length dust cover and a 3-slot 1913 rail, paired with an alloy grip module featuring an enlarged, removable flared magwell and aggressively textured panels. The 2011 platform and single-action-only system are complemented by an external hammer, ambidextrous thumb safeties, and a firing pin block.
Its 4.4 in bull barrel is matched to a factory Mach3D compensator with top porting and a right-side set screw. Sighting is via a front XRAY3 night sight, with rear sighting accomplished by the mounted optic or slide interface depending on configuration.
The slide is cut with front and rear serrations and top lightening/traction grooves, and it includes SIG’s SIG-LOC Pro optic cut with a bottom-mount interface; the stated torque spec is 10 in-lbs.
Capacity is 21+1. The pistol accepts 2011-pattern double-stack steel magazines, and this example includes three 21-round extended steel double-stack magazines. Country of origin is the USA.

