Samsung 970 EVO M.2 NVMe 500GB $132.05 + Delivery (Free with eBay Plus) @ Computer Alliance eBay (+$15 Cashback)
Samsung 970 EVO 500GB which I believe qualifies for an additional $15 cash back with the Samsung Cash back offer: Thanks Dowey
Computer Alliance seems to be on the list of participating vendors. Ends up costing $117.05 ($139 - 5% - $15). Don't forget cash rewards for an additional 1% off.
Also should use either: