5.56 Nato Aero Precision 14.5" Pin and Welded Three Prong Flash Hider for a total legal length of 16". Mid-Length Gas System and Magpul MOE SL Extetended Handguard. Picatinny Gas Block. Front Sling Point and Rear Sling Loop. The KP15 Stock has a trap door and can accept either a Sling Socket or Mlok Sling Attachment if desired. I have XS low profile offset back up sights on it. This is a very light, very handy carbine. I put it together for my daughter and she never used it, so I'm just going to sell it. It's a solid, reliable shooter. Sling IS NOT Included. Located in Chapel Hill, TN. Cash Only.