FN 545 MRD 45 Auto (ACP) 4in Flat Dark Earth Pistol - 15+1 Rounds - The FN 545 MRD auto-indexing FN compensator carries 45 ACP at the ready, giving you the stopping power you need to face any threat. But holding all the power and capacity doesn't matter if you can't put rounds on target, so its made with a crisp trigger and unrivaled ergonomics. Fully ambidextrous magazine release and slide stop lever. Includes two interchangeable backstraps, two magazines, four MRD mounting plates, manual, locking device and zippered case.