ONE HORSE OH-15 MULTI-CALIBER COMPLETE LOWER RECEIVER FOR AR-15 Ready to run the moment it hits your bench. This complete AR15 lower comes fully assembled, function-tested, and built on a forged 7075-T6 hardcoat anodized receiver. It features a Mil-Spec buffer tube setup, standard M4 adjustable stock, crisp single-stage trigger, A2 grip, and all small parts installed. Drop it onto any Mil-Spec upper and you're ready to roll. Every One Horse rifle and component is made in America with uncompromising standards. One Horse use U.S.-sourced materials, U.S. manufacturing, and strict quality control at every step. No shortcuts, no imported surprises - ju Mfg: One Horse