Its .45 ACP pistol cartridge was discharged from an unrifled barrel, thus greatly reducing its intrinsic and practical accuracy alike and being intended for short-range use—ideally, one to four ...

Caliber & Barrel Length Both pistols chamber .45 ACP rounds, offering excellent stopping power suitable for self-defense scenarios or duty use. The FNX 45 has a threaded barrel measuring 5.3 inches in ...