Bolt-on Picatinny rails give you almost unlimited accessory mounting options for your Yankee Hill Customizable Free-Float Tube or Customizable Two-Piece Handguard. Choose only as much rail as you need to avoid cluttering handguard with unused rail space. 6" rail is a full-length rail for Carbine-length handguards, 9¼" rail is the correct length for Specter tubes, and 12" rail is full-length for Rifle tubes.
AR-15, Issue:11, Page:054
Big Book Catalog, Issue:68, Page:052
SPECS: Aluminum, mil-spec hardcoat anodized, matte black. Fits Yankee Hill Customizable Free-Float and Two-Piece Handguards. Mounting screws included.