Sig Sauer SIG522 Classic .22 LR Semi-Automatic Rifle – 16" Threaded Barrel, Side-Folding Stock, 25-Round Magazine
The SIG522 Classic is a rimfire trainer that mirrors the control layout of the renowned SIG 55x/556 series. Built with a 16-inch threaded barrel, ambidextrous controls, and a side-folding, telescoping stock, it offers familiar handling in an affordable .22 LR platform. Discontinued and increasingly sought after by SIG enthusiasts, this example delivers the proven ergonomics of its centerfire counterpart in a lightweight, blowback-operated package.
Condition
Overall Condition: Fair condition, showing extensive signs of prior use and handling.
Bore Condition: Fair – Generally clean, some residue or smudges, slight corrosion.
Rifling Condition: Fair – Worn rifling, slight loss of definition.
Scratches and blemishes are visible on exterior surfaces, and the stock buttpad is damaged. The rifle remains fully functional.
What’s Included
- 1 × 25-round SIG SAUER translucent polymer magazine
- Factory SIG SAUER SIG522 owner’s manual
The straight-blowback action keeps maintenance simple while preserving the familiar takedown architecture of the 55x family. Its 4140 chrome-moly steel barrel is threaded for muzzle devices, offering easy customization.
Constructed with a 7075-T6 aluminum upper receiver and a durable polymer lower, the rifle balances durability with a manageable weight. The ribbed polymer handguard stays cool during extended range sessions.
Ambidextrous safety and magazine release controls make the SIG522 adaptable for right- or left-handed shooters. A full-length rail along the receiver provides a solid mounting surface for optics, and the front sight base is in place should you wish to reinstall iron sights.
The side-folding, 3-position telescoping stock lets the rifle compress for compact storage or transport. Combined with the .22 LR chambering and 25-round magazine, this setup is ideal for economical training that closely mimics full-power SIG handling.