Originally Posted by tager
..... an extended slide release for a (2013 build) 30-S.
In official Glock "speak", we are talking about a "Slide Stop Lever" or an "Extended Slide Stop Lever."
The most recent Glock parts list I have access to (Rev 62 / April 2013) does not list a regular or extended slide stop lever for the 30S - in other words that part list does not address the 30S at all. It does cover the Gen 3 30 / 30SF and the Gen 4 30 for the regular versions, but nothing for an extended part.
Not all Glock pistols have an extended slide stop lever available in the Glock parts world. For instance, the Glock 36 does not. But fortunately, a Glock 19 extended one that has had the "tab" that is activated by the bullets in the mag modified to have a better fit with the 45ACP bullet nose works like a champ.
Hope you find something that works - I really like an extended slide stop lever on Glocks.