Designed as a low-powered companion to the U.S. M14 Rifle, the MC-58 uses a Harrington & Richardson Arms Co. Reising Model 65 receiver fitted out with similar sights and controls as the M1 Garand and M14, with the U.S. Marine Corps reportedly ordering 3,500 of these training rifles c.1958. Features a fixed winged blade front sight and a blued Redfield micrometer peep rear sight attached to the left of the receiver, a M1/M14 pattern safety lever in the front of the oversized trigger guard, along with "U.S." property markings above the two-line address on the barrel and with the three-line address and model designation on top of the receiver. Fitted with a pistol grip profile walnut stock with a small boxed "DoD eagle" acceptance stamp on the grip and an "H&R, INC." marked parkerized magazine.

Excellent plus overall, retaining 99% original parkerized and blue finishes with a "dry" appearance, some limited minor handling marks, and clear markings. Mechanically excellent.