The FNX-45 Tactical is a full-size DA/SA pistol chambered in .45 ACP with a 5.3-inch cold hammer-forged stainless steel barrel threaded at .578x28 tpi. It holds 15+1 rounds, weighs 33.3 oz, measures 8.6 inches overall, and carries a polymer frame with matte black finish. 
 

Key Specifications 

• UPC: 845737000912 
• Caliber: .45 ACP 
• Action: Double Action / Single Action (DA/SA) 
• Capacity: 15+1 Rounds 
• Barrel Length: 5.3 inches 
• Overall Length: 8.6 inches 
• Weight: 33.3 oz (2.1 lbs) 
• Frame Material: Polymer with Matte Black Finish 
   

Detailed Features 

The threaded barrel ships with a thread protector and accepts suppressors or compensators at .578x28 tpi. Trijicon 3-Dot Night Sights are mounted with a suppressor-height profile so the sights stay usable when a can is attached. 
 
Ambidextrous decocking/safety levers work from either side without part swaps. Two backstraps are included for fitting to different hand sizes. The MIL-STD-1913 rail runs under the frame for lights or lasers. The 15+1 capacity in .45 ACP is meaningfully higher than most single-stack options in this caliber.

The FNX-45 Tactical has a generally positive following among shooters who prioritize .45 ACP capacity and suppressor-ready configuration. The polymer/stainless construction and overall durability are consistent highlights.

Ergonomics and grip feel get positive marks, and the night sights are specifically called out as a practical feature for low-light use. The threaded barrel and suppressor-height sights are appreciated by owners who want a ready suppressor host without additional gunsmithing.

Size and weight come up regularly as the main trade-offs. At 33.3 oz unloaded it's a large gun, and some owners note it's not well-suited for concealed carry. Magazine capacity of 15 rounds in .45 ACP is seen as a genuine advantage. Price relative to similar-spec pistols generates occasional debate, though most owners view the feature set as justifying the cost.

Very easy to shoot, and mine has always been dependable.