Beretta Px4 9mm (17) Rd Blue Steel For Sale 17-round magazine Fits the Beretta® PX4 9mm pistol Magazine body constructed of heat treated steel with black oxide finish Injection molded magazine follower Magazine spring formed from heat treated chrome silicon wire Made in USA 17-round magazine Fits the Beretta® PX4 9mm pistol Magazine body constructed of heat treated steel with black oxide finish Injection molded magazine follower Magazine spring formed from heat treated chrome silicon wire Made in USA