I bought a 6.5 grendel RRA with lothar walther barrel upper on an online auction about a week ago. I received it via ups today. When I picked up the box I could feel it flopping around inside (uh-oh). Upon "unpacking" it I found that it's got 6.5 SAOD machined into the receiver and milled into the handgaurd in 1" tall letters. This was not what I bid on so I started doing some research and found that the 6.5SAOD is a Grendel "variant" according to SAOD's website. I'm pretty new to the AR platform so I'd never heard of SAOD and I'm confused at the "variant" part. Does this company produce a quality product? And WTF does Grendel variant mean? I think the handgaurd looks like crap, it'd be different if they were sponsoring me but they're not and I'm not that into advertising for free. Any input would sure help, for now I'm severly dissapointed and thinking seriously about sending it back. Thanks in advance