24″ BARREL WITH STEP RIB NO FURTHER A MYSTERY

† Notice: The receiver-mounted, Picatinny-design rail is built to accommodate most optics and optic mounts meant for use with Picatinny/ MIL-STD 1913 rails. Even so, as a result of reduced clearance in between the highest with the receiver and The underside in the optics rail, optics and optic mounts that extend much more than .But I do should ag