The FN AR-15 Button Rifled Barrel is a 20" M16 rifle length accessory-barrel with a caliber of 223 Rem | 5.56 NATO. It features a manganese phosphate finish, a chrome-lined chamber and bore, and M4 style feed ramps for enhanced performance.
Specs
| Model No. | FN20-100043 |
| Model | AR-15 Button Rifled Barrel |
| Manufacturer | FN |
| Color | Manganese Phosphate Finish |
| Caliber | 223 Rem | 5.56 NATO |
| Barrel Length | 20 |
| Weight | 2.35 |
