Genuine surplus, German-made, MG3 bolt rails. Left and right sides. Raw, sandblasted finish.
These are actually easier to use than the new rails you may have seen floating around, as the rivet holes are already drilled, and the rails are already thicknessed.
Expect rust, pitting, and surplus wear, in a perfectly functioning surplus state. Has all the components. These have been very difficult to find and are a must-have collector's piece or companion to your MG3, MG42 or M53 build.