RE: thread: https://www.m4carbine.net/showthread.php?t=78456

Called them up, explained the problem. No questions asked, they emailed me an RA shipping label via UPS and had a repaired upper, with my BUIS sighted in (based on my observations from a rudimentary eyes-only bore-sighting), back to me in 2 weeks flat. Considering I'm on the other side of the country from them, thats pretty much all ship time.

Havent taken it to the range, yet, but you can bet thats high on the priority list.

After reading some users' experiences with warrantee service from some manufacturers (IE CMMG), I was apprehensive about the prospect of them honoring a warrantee on a gun that I bought pre-owned, but they didn't even seem to care about it.

A+ in my book.

Anyways, thanks for those who suggested I call them up anyways.