FN Barrel M16 BB 20 Rifle Length 556

Specs

• Model Barrel
• Caliber 5.56 NATO
• Fits AR-15
• Finish Matte
• 20
• 1:7 Twist
• Button Broached
• Rifle Length Gas System
• M16 Contour
• Black 20-100043 FN AR15 premium button rifled barrels are manufactured using U.S. sourced Chrome Moly Venadium material per

Each barrel is High Pressure Tested (HPT) and Magnetic Particle Inspected (MPI) to ensure that it is free of microstresses or flaws, resulting in consistency and quality in every barrel shipped from the factory.