FN 545 Tactical 45 Auto (ACP) 4.7in FDE Pistol - 10+1 Rounds - FN 545 Tactical is setting a new standard in 45ACP. Provides a suppressor-ready threaded barrel, co-witness tritium night sights along with the ability to add a favorite red dot optic in minutes. 545 Tactical ships with two interchangeable backstraps, two 10 round magazines, four MRD mounting plates, and premium zippered case