ASK AN EXPERTDescription
- AR-15 Replacement Barrel
- Rifle Length Gas System
- .750" Diameter Gas Seat
- US Sourced Chrome Moly Vanadium Material
- High Pressure Tested
- Magnetic Particle Inspected
- Chrome Lined
- M4 Style Feed Ramps
The FN AR15 20in M16 5.56 Rifle Barrel is manufactured using U.S. sourced Chrome Moly Venadium material per Mil-B-11595E. Each barrel is High Pressure Tested (HPT) and Magnetic Particle Inspected (MPI) to ensure that it is free of micro stresses or flaws, resulting in consistency and quality in every barrel shipped from the factory.
The bore and chamber are chrome lined to help resist corrosion and provide resistance to heat erosion which greatly improves barrel life and reliable chambering / extraction. The M4 style feed ramps and barrel extension provide consistent feeding and the matte black Manganese Phosphate finish resists external corrosion and oxidation.
Warranty Information
| Type | Barrels |
| Caliber | 223 Rem | 5.56 NATO |
| Barrel Length, in | 20" |
| Gas System | Rifle Length |
| Rate of Twist | 1 in 7" RH Twist |
| Thread Pattern | 1/2x28 |
| Finish | Manganese Phosphate Finish |
| Finish Type | Applied Finish |
