The metal chassis was engineered to improve accuracy and ergonomics through adjustability.The action is bedded on an aluminum block, and the barrel is free floated.The adjustable buttstock allows tailoring a much better fit for accuracy and speed when getting behind the scope.It takes ar15 grips, arca rails, m-lok accessories and has customizable colors.Length Of Pull: 13"-13.50"Grip Type: AR15 Standard and Vertical