I ran this for a little while in PCC, when PCC was brand new to USPSA:


At first, it was like me and one other guy running PCC at events held at a local indoor range, which were all designed around the short courses. We were absolutely blazing fast compared to the other classes, in part because there were no surrender positions or draw. The biggest thing you had to be conscious of with the AR was height over bore. As the class matured, more folks started to join, better courses started showing up, and it got a lot more challenging, in a good way. When I stepped away from it about two years ago, I had started to find the short barrel to not be a competitive advantage. While I could keep pace with most folks, talented folks with full length carbines routinely cleaned my clock. It came down to the splits. Whatever added maneuverability I had from the short barrel was offset by their faster shot-to-shot time, by virtue of the fact that their carbines had next to no recoil with the added weight. So if it is truly USPSA PCC you are after, I wouldn't go out of my way to build a shorty.