Several issues - Faxon Firearms ARAK-21 Complete Upper Receiver

I purchased an ARAK-21 12.5” 5.56 upper, and I’m honestly pretty disappointed. First of all the accuracy is pretty atrocious. It’s a real struggle to get a group under 8 inches at 100 yards with a 4X scope and Xm193 ammo, from a bag. It does slightly better with 77g SMK but not much. The scope mount is solid. Admittedly, I did not follow the “one round, clean it, etc.”break-in process that’s listed in the manual, so that’s on me, but even so that seems REALLY inaccurate. Like way more than any other 556 gun I’ve ever shot. I am by no means a great rifle shooter but just to make sure I wasn’t worse than I thought. I pulled out 4 other 556 guns and shot them all side-by-side (including the ARAK). Everything was shot using XM193 ammo, 10 shots each, 100 yards. All from a bag. The other four rifles were shot using red dots (either an Sig Romeo4 or eotch.) and a 3x magnifier so if anything I would think the 4x vortex scope would give the ARAK an advantage. I’ve also been able to get good groups with that scope on other rifles. The other rifles shot all shot about 4 inches, more or less. The ARAK was over 8 inches. The rifles used use were a Tavor x95, G36c clone and 2 ARs.

In addition to the accuracy issues, after about 150rds the muzzle break came loose and for the life of me I can not seem to get it to stay tight while shooting. I emailed their customer service and they told me they would send me a shipping label so that I could return it to them and they could fix the issues. Problem is, I never got a shipping label. Tried emailing them, nothing. Tried calling them, you have to leave a voicemail. Haven’t heard back. it’s basically just a paperweight at this point.