The Surgeon Magpul Pro comes on our 591 Short Action that is known for its strength and accuracy. This action features an integral 20 MOA MIL-STD 1913 rail and recoil lug. By integrating the recaol lug into the receiver, Surgeon Rifles creates a longer tenon lehth and strengthens the entire free-floating system. The Magpul Pro has a folding buttstock and comes in three color options.