3600 trigger bar

[BigBoss]

Just wanted to hear if anyone else has noticed the/an incompatibility of the new 3600&3600-1 Gen 4 trigger bars when paired with anything else other than the new Gen 4 trigger housing (I don't believe they changed it's # but it is definitely different). Also the Gen 4 (..) bar seem to not seat in the new housing. Not to mention the new polymer blend of that new housing is WAY different ANY previous trigger housing. Glock is known for it's usage of the term "upgrade" when they are in all actuality addressing an issue. The issue is apparent if enough of them have passed through your hands. However an "upgrade" that makes prior trigger parts obsolete is a new one for Glock. Any one else experiencing any of this?