WHAT DOES 3RD ONLINE MEAN?

The Ruger® LCR® is a light-weight, small-frame revolver with a uniquely clean trigger and highly workable recoil.275" underneath the top of your rail may not fit the PC Carbine™. Make sure the optic or optic mount you want to use does not prolong more than .275" down below the very best with the Picatinny-style rail when installed.It was not &q