The Radical Firearms FR24-6.5-SS-MED-15RPR is a complete AR styled rifle chambered in the wildly popular 6.5mm Grendel cartridge. This is an AR-15 rifle built using a law enforcement grade upper receiver and a mil spec lower. It starts with a 416R Stainless Steel Barrel and a Pepper Pot muzzle break. The Mil-Spec M-16 BCG is high pressure tested and magnetic particle inspected and melonite finished to ensure flawless performance in the field. It features a free float Radical Firearms 15 RPR (Radical Parallelogram Rail) that is M-LOK compatible and has a full length picatinny top rail. Perfect for competition or hunting, this is the ideal workhorse AR that you've been looking for!