Manufactured c. 2003-2013 by Surgeon Rifles out of their Prague, Oklahoma location prior to relocating to Texas. Marked with the manufacturer name on the left of the receiver ring, with Model 591 and Prague address markings on top, and "SCALPEL" on the left breech of the barrel. Top mounted integral receiver scope rail with attached Sniper Tools Design Co. angle cosine indicator, free floating barrel with Surefire muzzle brake, Accuracy International AX chassis with KeyMod slots and an attached rail section, and one MagPul PMAG magazine.

Very fine overall, retains 95% original FDE finish with some handling marks. Velcro pads and a foam cheek protector have been added to the sides of the chassis, with wear and tear appropriate to field use concentrated on the grip, butt, comb and magazine well. Mechanically excellent.