Originally Posted by Comrade Bork
Aftermarket "beavertails" are
allowed in the "stock" categories with Gen-3's & prior, so long as they are not wildly
different from the Glock-produced beavertails available for the Gen4's.
You will not find it in the current rules. The 2013 rules are pretty much a repeat of the 2012 rules and that particular change did not get in there.
But it is true. Check with the GSSF RangeMasters at whatever rmatch you attend.
You can bet that I will, since I will be shooting 9 GSSF matches this year and ROing 2 and probably more of them.