STAG customer service
Had an issue with my M4gery that I picked up from Legal Transfers awhile back (April). Damn thing would not hold zero with iron sights.
Thinking the front sight was canted, I decided to take a closer look at it. I realized when tearing it apart that the barrel was loose in the receiver. I contacted LT and they gave me a number to Mike at STAG.
They Emailed a shipping label and had it fixed and back to me in 4 working days. If not for the holiday Mon, I would have had it last week. I was pissed it wasn't done right from the get go, but quite pleased that:
they fixed it without accusing me of messing it up
payed to ship it back, fixed it, and shipped it back quick
I wish they offered a Mid length upper.