I sent an older M8 4x to Leupold for a "checkup". They completely disassembled it, rebuilt it, filled with gas and did a QC check, and sent the scope back to me - all gratis. How do I know this? It was all detailed on the technicians report that was in the box when they returned it to me. I was blown away by the outstanding service!
Was it perfect when I sent it to them? I dunno, probably, but I had bought it used and was planning to use it on a DG rifle and didn't want to take any chances over something I had control over, before finding out the hard way out on a windswept plain somewhere.
Nothing but positives for the OP's idea.
