A full-sized polymer-framed pistol, the PSA 5.7 Rock introduces game-changing ergonomics and controllability. Made from high-quality 416 stainless steel and advanced polymers, this pistol lives up to today's highest expectations while maintaining the unmatched Palmetto State Armory value. Chambered in 5.7x28mm, the PSA 5.7 Rock is fed from a supplied 23-round magazine and operated by a smooth single-action striker-fired trigger mechanism. The threaded carbon steel fluted barrel with QPQ coating and 416 stainless steel slide has a Cerakote Sniper finish for a smooth finish that also offers maximum corrosion protection to ensure longevity in the life of your pistol. This pistol is designed to work with Glock-compatible sights.