ACME North has a used but in excellent Percision rifle built on a Aero Precision lower with one magazine in 6.5 Grendel. 

This rifle was custom built using an Aero Precision Model M4A1 lower with an Alex-A barreled upper in 6.5 Grendel. These barreled uppers will retail or as much as $1500 by themselves. This rifle features a 25 inch barrel with a 1/9 twist rate and comes fitted with a A2 style flash hider, low-profile gas block, free float hand guard tube with two sling swivels, flat top Picitinney railed receiver and UTG pro pistol grip and adjustable butt stock in flat dark earth. The rifle comes with an upgraded two-stage trigger, and anti-walk walk pins, and 1 ten round 6.5 Grendel magazine, also in flat dark earth.  The Aero Percision lower has the one piece trigger milled guard with the normal 2 position selector installed.  The previous owner built this rifle from the ground up as a dedicated long range precision rifle chambered in the 6.5 Grendel. He would make an excellent choice for long range recreational shooting or general purpose use. 

 Item number G-70248-1