SIG Sauer SIG522 SWAT .22 LR Semi-Auto Rifle | 16.6-Inch Threaded Barrel, Folding Stock, Quad-Rail Handguard
The SIG Sauer SIG522 SWAT packs authentic 55x-series ergonomics into a rimfire package produced only from 2009 to 2015. This factory SWAT configuration ships with an alloy quad-rail, a side-folding Swiss-pattern stock, and a threaded 16.6-inch barrel topped with a flash hider—features that set it apart from standard .22 LR trainers and add real collector appeal.
Condition
Overall Condition: Very good condition, showing only light, superficial signs of prior handling or use.
Bore Condition: Excellent - Clean, mirror finish, no signs of wear.
Bore Rifling: Excellent Rifling - Sharp lands and grooves.
Specific Condition Notes: Some external marks and scratches and light handling wear are visible on close inspection.
What's Included
- 2 × 25-round SIG Sauer translucent polymer magazines
- 1 × 10-round SIG Sauer translucent polymer magazine
- Polymer vertical foregrip (rail-mounted)
This SIG522 SWAT retains the familiar controls of the centerfire 55x family, making it a useful companion for low-cost training. The ambidextrous magazine release and manual safety mirror the layout shooters expect from the larger platform.
The alloy quad-rail handguard and full-length Picatinny top rail give ample space for optics, lights, and other accessories. A hooded rotary diopter-base front sight is factory installed, so the rifle is range-ready out of the box.
Its 16.6-inch steel barrel is threaded and fitted with a flash hider, offering options for muzzle devices or a suppressor. A 1:16 twist rate stabilizes common .22 LR bullet weights for reliable accuracy.
The side-folding, telescoping, multi-position polymer stock provides compact transport and adaptable length of pull. Combined with the lightweight polymer frame and aluminum receiver, the rifle balances quickly while remaining durable.
With its limited production run and SWAT-specific features, this SIG522 delivers both functional versatility and added collector interest—backed by three factory magazines and a rail-mounted vertical foregrip to complete the package.




