Sorry to hear about your experience. I have both an A300 and a Mossberg 930. My A300 has always been 100% reliable and I got one in nice condition. My 930 was very unreliable to start. I second the great customer service from Mossberg. They paid to have it returned and serviced twice. Neither attempt fixed the issues. On the third attempt they decided to just ship me a new firearm, which has been perfectly reliable. Mossberg's customer service is great.