Atlas makes a picatinny/Anschutz rail adapter that has the fasteners that travel in the Anschutz rail (called the AFAR.) Give them a call and see if they will just sell you a couple of the screws and fasteners for the rail (if B&T won't sell you two of the screws and fasteners just purchase the adapter and only use the hardware you need) and replace the M-Lok screws and fasteners with the ones from B&T.