Hi all, I wanted to share a simple fix for anyone missing a grip washer:
I recently purchased a DC trade-in Model 10 that had a missing washer on one of the grip panels. This causes that panel to slide around under normal grip pressure and wasn't ideal.
At the time of this post there wasn't a good source for just a replacement washer without the cost approaching a used set of grips.
I found that a 65 cent, 3/4 diameter, 13/64 thick nylon washer from Home Depot is an easy, non-destructive solution. The diameter is exact to the factory metal washer, which made it a simple press fit. It's a little thicker than the factory one, but still has a bit of clearance from the mainspring and rebound slide. The panel fit snugly with zero play.
Depending on the tolerances of your grip/gun, you may need to sand down the thickness a bit to clear the operating parts. I think a 1/8 thick nylon washer would be perfect, but I don't think Home Depot carries one.
Photos:
Fix for Missing Washer on Smith & Wesson Factory Grips - Album on Imgur
Hope this helps someone out there!