Thin is in - Guntec USA Ultra Thin Key Mod Free Floating Handguard w/Monolithic Top Rail

These make for a very streamlined look and feel. They install easily and are ascetically pleasing the included barrel nut is able to be done with common tools crescent wrench finish is even and durable. I would definitely recommend this product. They include barrel shims to be added so orientation of nut is correct for alignment of screw holes so that the top rail aligns with the receiver. I use a long base to hold this alignment while tightening the screws that attach the handguard to the barrel nut. The final assembly is solid and very nice handling.