Context for those living in less restrictive areas:

AB 1127 is a California Bill that aims to ban the sale of "semiautomatic machinegun-convertible pistols" (ie pistols that can utilize a Glock switch or similar). The bill doesn't mention Glock by name, but it's intent seems to be geared towards removing the Gen 3 Glocks from the market.

Ironically, one of the main reasons the Gen 3 is still so prevalent despite the Gen 4 and 5 having been out for a while, is that California has not added (and likely will not add) them to its "handgun roster" (a whitelist of handguns you are allowed to own in the state - I know). The Gen 4 and 5 are not as easily modded to be full-auto (though it's still possible), so if those had been added to the roster, chances are high that there'd be far less full-auto Gen 3s floating around...