Faxon's Streamline handguards are a sleek and low-profile solution for those looking for a slimmer handguard with flexible mounting. Featuring an uninterrupted MIL-STD 1913 "Picatinny" rail across the top and 3 facets of M-LOK cuts, the Streamline Aluminum Handguard is a lightweight and sturdy mounting system. The handguard is 100% made in the USA from extruded 6061 aluminum, hard-coat anodized black and comes with a steel barrel nut. Mounting is extremely simple with common tools and the handguard features alignment tabs to ensure it cannot rotate during vigorous movement. FeaturesExtremely lightweight without sacrificing strength or rigidityM-LOK attachment across 5 facetsAnti-rotation tab allows your handguard to lock onto either billet or mil-spec upper receivers, while not being able to rotate radially around the barrel nut.Attaches with standard armorer's wrenches and toolsDPMS High Profile