WHAT DOES 3RD ONLINE MEAN?

† Take note: The receiver-mounted, Picatinny-model rail is intended to accommodate most optics and optic mounts intended to be used with Picatinny/ MIL-STD 1913 rails. On the other hand, as a result of decreased clearance in between the top from the receiver and the bottom in the optics rail, optics and optic mounts that reach over .You will also