IM NOT SHOOTING USPSA AS MUCH AS I WANT TO SO IM SELLING MY ATLAS TITAN. IT IS A 40S&W WITH (10) NUMBERED 21 ROUND SVI MAGS. ALL TUNNED AND READY TO RUN. PISTOL AND MAGS WERE SERVICED BY ATLAS RECENTLY. COMES WITH ATLAS PISTOL CASE, 357 SIG BARREL WITH ACCOMPANYING MAGAZINE SPRINGS AND FOLLOWERS. YOU CAN SHOOT 40 OR 357 SIG WITH THIS PISTOL. PLEASE PM ME ANY QUESTIONS.