BlkHawk73 Thanks:
The fitting turned out to be the hard part. The Center Block which the two grips glue to was just a tad narrow. One grip snubbed up well, while the other didn't make contact. I had to build it up. All I had was 15 - minute (MID-CURE) epoxy. But it seems stout enough. I put masking tape on the Back-strap and replaced the grips, then did the sanding and filing. Now to figure how to buff it out.