SPAMFian clones/succesors

With minor problems that have big ripples popping up on my spamf i am in the unfortunate market for retiring it and getting a successor. Does anyone have any recommendations for one?

Ideally I want a sidearm that retains a similar performance level (120-150fps) and form factor. A bonus is if it has some compatibility with a bcar. And finally as a final bonus I wish for it to have the ability to put fidlock mounting on it so that I can have it holstered on my plate carrier similar to my spamf.