The evolution of the SIG556 platform, the new SIG556xi gives you unparalleled modularity in barrel length, caliber, magazine type, and stock configuration. A folding stock combined with ambidextrous magazine release, bolt release, safety selector and charging handle. Accepts any MIL-SPEC AR-15/M4/M16 magazines.
- 3-position adjustable gas piston operating system with rotating bolt
- Swiss-style folding stock with removable cheek riser
- Ambidextrous controls
- Locking flip-up front and rear sights
- Quad Rail
Specifications are subject to change.