Turns out if your glock serial number starts with an L the gen 123 grip force won't fit. That sucks!!
Found more info. http://gripforceproducts.com/site/mobile?url=http://gripforceproducts.com/GEN_3.html#2977
"MAY" not fit.
The chances are slim for us in Canada that have one of those frames. IIRC there were only a few hundred that were made "out of spec". I have 2 "L" serial glocks, both fit the GF123 perfect.


















































