It is possible, but 99% of the BFA work I have seen consist of simply threading the bore for a hexagonal plug that is screwed in and adjusted back and forth until reliability is achieved. This is a much finer piece of work and the finely machined shoulder would disallow fine tuning via depth, requiring either multiple inserts of different aperture or different plugs altogether. The fact that the bore has been carefully preserved brings me back to a suppressor adaptation.
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