WHAT DOES 3RD ONLINE MEAN?

† Observe: The receiver-mounted, Picatinny-style rail is created to accommodate most optics and optic mounts meant to be used with Picatinny/ MIL-STD 1913 rails. Having said that, due to reduced clearance concerning the best with the receiver and The underside from the optics rail, optics and optic mounts that reach much more than .The Ruger Lapt