Some A&D boxlocks have integral strikers/hammers. Fabulous, until they break, then, they suck. Some have separate hammers and strikers, but, the strikers must be serviced from the back-better, but, still a pain.
Disc set strikers can be serviced from the breech face in minutes, assuming you planned ahead and bought a tool and a set of strikers. Even if you didn't, it is far less of a tragedy then the other two.
I simply brought the point up to illustrate that research into what you actually want is a good thing.
Best,
Ted
