What Ambi mag release will work with billet lower

[a1-equipment]

New build I am doing on a Noreen billet lower. The kac Ambi release I have will not work. Does anyone know an Ambi release that works well with billet lowers

 

[bobke]

Try the Norgon AMBI release or the Troy. Will be dependent on actual width and machining detail in immediate area around release. Troy works on some, not all. Norgon works on most.