Receiver Lapping??

[customcutter]

Absolutely true. I got a smiley face sticker on my squared speed of light test. I prefer the face of my tool to be flat. The deeper the groove becomes the more potential for the abrasive compound removing material from the side of the receiver barrel channel instead of just the face.

True as well Montana. We only want the face squared up, not thinner sides.

Sneaky, I hadn't thought about offering the service, but by the time someone paid postage both ways, labor and a trip to the post office, reasonable would be about $2/hr.

I have a cheap source of rods for truing the uppers. Unfortunately it takes at least an hour with a torch and a couple of 24" pipe wrench's to dismantle the housings that the spindles are in.