CDNN still has 25 of these S&W midlength AR-15's on sale. https://www.cdnnsports.com/smith-wesson-m-p15-moe-mid-5-56-fde.html#.XRUqPdLsYd8

Item Description: I have for sale a good condition black Magpul MOE Midlength Handguard with a scout light mount on the right side. It's in good condition, there was a mark on the heat shield but a small shot of rustoleum and it's good. I'm looking for a Streamlight or Surefire 300+ lumen 1"...