Bought one and kind of regret it. It's fun to shoot, and 100 percent reliable now, but wasn't at first. On the first range trip to get it zeroed I was getting 2 round bursts, I though maybe I was accidentally bump firing. But after it did it 5 times I knew something was off. On the last mag it gave me a 5 rd burst and almost got me kicked off the range. I was lucky those were the last 5 rds in the mag. So I sent it back to the extar to get it fixed. They wanted to know what type of ammo I was shooting and that pissed me off. Anyways I sent it back to them and they said they did "extensive testing and shooting with it" and couldn't replicate the issue. They went ahead and replaced the bolt carrier and trigger group. Also these assholes said they couldn't send it back to me directly, even tho I already got it through and ffl, had to do the process again and pay another transfer fee. So I got it back and took it out to the range again and it fired 100 percent reliably until the last mag. Every shot went off but the bolt didn't lock back this time. Turns out 2 of the 3 screws that hold the bho tab flew out of the gun while I was shooting. Never found them. Called them up to get some replacement screws and they wanted me to go online and buy them since they sell replacements. I told them im not paying for it after all that shit they put me through. Guy sounded like he couldn't be bothered but eventually agreed to send them. 500 rds without issues after the fix but wouldn't buy it again. After all that I would say it is fun to shoot and looks slick but feels cheap and dont know how long it will last. Proceed with caution.