The Faxon Firearms FX-19 Hellfire-X Gen 2 is a compact, striker-fired 9mm Luger pistol built on a Glock 19-style compatible platform. It has a 4-inch threaded barrel and a 15+1 capacity, with a slide machined from 416-R stainless steel and finished in black DLC. Nitride-treated stainless steel components round out the build for corrosion resistance. 
 

Key Specifications 

• Brand: Faxon Firearms 
• Model: FX-19 Hellfire-X Gen 2 
• Caliber: 9mm Luger 
• Action: Semi-Auto (striker-fired) 
• Capacity: 15+1 
• Barrel Length: 4" 
• Slide Material: 416-R Stainless Steel 
• Finish: Black DLC 
   

Detailed Features 

• Glock 19-style compatible platform for magazine and holster fit 
• Threaded barrel for muzzle device attachment 
• Optic-cut slide with enhanced front, rear, and top serrations 
• Nitride-treated stainless steel components for corrosion resistance 
• Completed a 15,000-round durability test to US Army TOP 3-2-045 plus a NATO drop test

Faxon Firearms has a strong reputation among AR-15 shooters for barrel quality, and that carries over into how owners talk about the FX-19 Hellfire-X. The Glock 19-style compatibility is a major draw, since it lets owners run their existing holsters, magazines, and aftermarket parts on a pistol with Faxon's own slide work.

Fit and finish get consistent praise, especially the slide serrations and the DLC coating, which owners describe as holding up well to daily carry and holster wear. Some buyers weigh the upgraded machining and optic cut against what a stock striker-fired duty pistol offers before deciding it is worth the switch.

Reliability feedback leans positive, with owners citing the nitride-treated internals as a reassuring touch for a carry gun. The main complaint that comes up is that aftermarket-slide pistols like this one can be trickier to source spare parts for than mainstream factory options.