I have a used in excellent condition 1-pc mount with integral 1" rings that I bought at the last MG Shoot at Knob Creek. It is NOT an Armalite mount, but same general design as the Armalite EX0027 mount. I upgraded to ARMS #22 rings, so I have no further used for this mount. I have pictures I can e-mail if you'd like them. The only "flaw" I can find on the mount is a scuff on the top/left of the forward ring.
$50 shipped to your door in the CONUS. USPS Money Order ONLY.