I just received my new RRA 9mm A4 upper reveiver and it doesn't fit any of my three RRA lowers! I'm not just talking about a tight fit, it won't fit period. After aligning and closing the front pivot pin the rear of the upper receiver is unable to completely close. Is it normal to have to remove material (file/sand) from the upper for a proper fit and allow the take down pin to engage?
Finally, after taking the time to carefully file down the rear end of the upper receiver and get a good fit I noticed that catch for the charging handle latch was missing. By this I mean that it had not been milled out during manufacturing? Did I just get a bad receiver that made it past QC or is this type of thing fairly common?
After contacting RRA customer service (Jenny) was very apologetic and promptly issued a RA# for it's repair. I am sure they will make it right. I am a BIG fan of RRA and I'm just alittle miffed with my experance.