The FN 510 Tactical is a semi-automatic optics-ready pistol chambered in 10mm with a 4.71-inch barrel and a gray stainless steel slide. This variant ships with 22-round capacity and polymer grips. It is optics ready from the factory. 
 

Key Specifications 

• Brand: FN 
• Model: 510 Tactical 
• Caliber: 10mm 
• Action: Semi Auto 
• Capacity: 22+1 
• Barrel Length: 4.71 in 
• Color/Finish: Gray 
   

Detailed Features 

• 4.71-inch barrel 
• Gray stainless steel slide 
• 22-round capacity 
• Optics ready configuration 
• Polymer grips

Owners who chose this FN 510 Tactical variant specifically note the 22-round capacity as the deciding factor over the lower-capacity gray model. For a 10mm pistol, the higher magazine capacity is seen as a significant advantage, and shooters report the magazines feed reliably across a range of factory ammunition.

The optics-ready cut gets uniform praise. Most owners mount a red dot immediately and report the pistol handles well with a compact optic installed. The gray stainless slide finish earns positive remarks for its durability, though a handful of owners prefer an all-black option.

The FN 510 Tactical in this configuration carries a premium price, which is the most common criticism in owner discussions. Those who make the investment tend to report satisfaction with the overall build and the 10mm performance, though some note the grip width is substantial and may not suit smaller hands.