On the GGG website it says that the handle is rotating, so I don’t think there’s a tab. The tab keeps the handle from rotating and locks it in place. I believe there is also a ball detent, like the Benelli, that helps hold it in place. My Benelli never spit out the GGG handle, but who knows with the 1301.
For those looking for a Surefire Scout light, they are on sale right now on Dvor for $243… that’s for the dual fuel, mini and mini pro.
I convinced myself into buying an aftermarket handle because I saw a few complaints about the plastic handle breaking under direct impact… that info and the fact that the factory piece is ugly as hell!!!