Sons of Liberty Gun Works

The Broadsword-89 Uppers and Drivelock (89 Series) rails provide arguably the most rigid interface on the market using traditional 2-piece AR15 construction. The extended barrel nut, Drivelock tensioning crossbolts, and keyed upper receiver face hugging the 89 series rails, with their anti-rotation tabs and stainless steel center index dowel all you to turn almost any lower receiver into match grade rifle. Features : - "14.5" Precision SPR Barrel" - 5/8X24 Threads - No Muzzle Device - "13.75" L89 Handguard"