SIG Sauer P556 Classic Swat Complete Specs and Full Gun Specifications

An Uncompromising Training Tool. Nothing improves performance like training, but centerfire ammunition is often prohibitively expensive.That concern is now alleviated by the SIG522. This full-size rifle handles like the centerfire SIG556, but fires affordable .22LR rimfire ammo. It includes a metal receiver, folding and locking stock, Picatinny rail, and just as importantly, the SIG522 offers you affordability, with familiar handling, accessory interchangeability and genuine Sig Sauer quality.