The FNX-45 Tactical is an update on the FNP-45 Tactical pistol. It features a polymer checkered frame with interchangeable backstraps, a serrated trigger guard, and picatinny accessory rail. The stainless steel slide features an external extractor with loaded chamber indicator, front and rear cocking serrations, and two mounting bases for the use of an electronic red dot sight. The barrel comes threaded for the use of suppressors or compensators, and all the controls are fully ambidextrous (decocking/safety lever, slide stop, and mag release). If you’re wondering what’s ultimately different between the FNP-45 and FNX-45 aside from a few improvements and aesthetic changes, the later uses a new magazine which is incompatible with the former model. To offset this a bit, a new FNX-45 comes with three 15 round mags.