Review of weaver style scope adapter for mark i, ii, iii handguns - Ruger Weaver-Style Scope Base Adapter for Mark I, II, III Pistols 90224

I ordered the weaver style base to mount a burris fastfireIII on my
ruger 22/45 MkIII .22 semi auto pistol with a 4" threaded bbl. the base seems durable / sturdy and well made. it comes with the three screws needed to mount the base to the handgun. the description of the base says "clear" the base is actually silver colored. the base holes lined up perfectly with the holes in the receiver, but the base was too long for the four inch bbl with the existing front ramp sight. I remedied this by cutting approx 1/4" off the base nearest the front sight with a dremel tool.with the modification the base mounts the fastfire solidly to the gun.