plastic grips original vs repro

[maxim]

I have a set of the new repro polymer grips as well as a set of originals. I can barely tell the difference as they have the same markings and even the same mould flash marks. Any sure fire way of telling original grips from repro?

[Warbird]

None that I'm aware of.  They claim to use the same molds as the originals.  I would look for subtle differences in the color, polish or opaqueness of them.  Some of the Post-War Soviet made Grips look OK on the front but have very crude backs with bubbles showing.  I mention that only as another possible thing to look for on close inspection with a magnifier.

I always look for a bit of handling scuffs to identify original Grips.  Of course as time goes by those aftermarket Grips will have some scuffs also.  Wish I could be of more help!  Let us know if you find anything.