I received a new Sear Housing Block assembly from Brownells for my new M&P today. I ordered the housing block without the Internal Lock and Mag Disconnect, but discovered that the block I was sent still had the mag disconnect lever installed.
The part number on the sealed bag was correct, so I suspect that Brownells is mis-packaging these sear housing blocks. Oh well, I removed the mag disconnect myself and now have a spare block/rear rail assembly.


















































