I stoped by Jonathan Arthur Ciener's table at the Knob Creek Shoot last weekend to buy some replacement parts for a used M16 .22 conversion kit I had bought last spring. The recoil spring guide rod retainer had come off and allowed the recoil spring to pinch ruining it.
I was asking Mr. Ciener about buying the parts and he tells me that these parts has been redesigned and the pressed on washer repalced with a new style rod with the retainer lathe cut on it as a one piece system. He says it has a lifetime warrenty as does the anti-bounch device and the back of the bolt. Just send him the broken parts and he will replace them.
I left with the replacement parts at no charge for a uniit I had bought used from someone else. To me that's great service and really standing behind your product!
Now if someone would just make a good mag loader for those 30 round mags.