We have the best selection for AR 9mm PCC and Pistol Upper Receivers and we use some of the best AR 9mm Barrels in the industry along with a Complete Nitride BCG. We specialize in AR 9mm Complete Pistol Uppers with a 5 1/2 Barrels. When combined with our 8 ounce 9mm buffer this 9mm PCC Upper will shoot smooth as butter. Our PCC (Pistol Caliber Carbine) Uppers come in variety of colors as well. Such as Flat Dark Earth, OD Green, and Cerakote Red. We also use billet 9mm upper receivers, made right here in Arizona. Mounts up with any AR 9mm Lower Receiver. These PCC Uppers do not have the bolt catch built into it. We find that they don’t work very well in general so we didn’t bother putting them in. These uppers work great with both lowers that have the bolt catch built into it and without. But if you put this on one on a lower without a bolt catch built in, it will not stay open on the final round. Nobody online has more in-stock AR 9mm PCC and Pistol Upper Receivers as Veriforce Tactical. All in-stock items ship same or next day too!