Fired about eighty rounds out of mine with no issues. It isn't much heavier than the thirty (surprisingly). One thing to keep in mind is that they are Generation 3. With that, there is a nub on the back of the mag that may interfere with mag well grips or some lowers. Other than that, it rocks!
I had the exact same issue with mine. My issue was a build up of brass "shavings" in the striker channel. I disassembled and cleaned out the brass and have never had an issue again. Before assuming the firing pin is the suspect, try that. YMMV
You could also have a four year old find it for you. My son found one of my detent springs and detent in a minute. I had been searching for an hour. Kids are like a bloodhound for small parts that they can put in their mouths. Trust me, I know.
I have a CMMG conversion kit that I bought for plinking. In my experience, this kit is fairly accurate (50 yards shots off a old motorcycle helmet) while standing with no bench. I'm using the kit in both a 1/9 and a 1/7 and haven't seen any major issues other than the dirtiness ( which is the...
Manchester Firing line has an in-house Armorer. I'm pretty sure Jim could do that do but it takes a little time to cut the old one off and not eff up the threads. They are also a member here. Give them a call and ask.
One of my AR's was having an extraction issue. Every second or third would stovepipe on me. I ordered the kit above and it solved all my problems. Seeing that my problem was fixed with the "upgrade", I would do it just for preventive maintenance.
Just got that email. The specs look good. However, I question how good the rifle is seeing that the optic is $410 from them. I have purchased product from them. The stuff I bought from them is not bad, just need to put more rounds down the pipe to say it quality. YMMV