I just got my carbine back from repair, they replaced the barrel due to it being what the tech described as corkscrewed. I'm happy with repair work, hipoint tech was polite, professional over the phone. took time to answer my questions afterward. Once I got it back I started putting all my accessories back on and noticed that when I put the Compensator back on I noticed about a 3/8" gap between the front site post and Compensator. I called hipoint and spoke to tech about it, he seemed puzzled. He told me the newer barrels are hardened different/better but told me they're the same length. I am hitting the machining lip inside the compensator with the end of barrel but there is a gap. Just wondering if anyone else had this happen. I even opened the gap the set screw is in. With my old barrel the compensator butted right up to front sight post. I don't see any other spaces in carbine. They sent it out and had it sighted in as part of repair process so I am reluctant to move the front sight. I will post a photo later once I'm home tonight. Thanks for any and all input.