Smith & Wesson M&P 15 Optic Ready Quad Rail

I just uploaded the Fixed files that add the length to account for the shrink as well as the star ring groove. Check em out and let me know how they look. Replacement Hand Guard for my M&P15. I will post photos when it is finished. Added extension files s if you have already printed it. Super glue the extensions on the front of the quad rail. The pictures show the groove I had to cut into the back side of the quad rail for the star ring.