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FN Manufacturing 10.5 inch Gov't Profile Barrel - NO FRONT SIGHT


FN Manufacturing 10.5 inch Government Profile ( A2 ) hammer forged barrel assembly. Barrel has 5.56 Nato chamber, 1/7 twist rate, M4 barrel extension, carbine gas system, threaded 1/2 x 28 and Mil-Spec phosphate coated. Barrel and chamber are chrome lined to a specification that is almost double the thickness of a standard M4/M16 Mil-Spec barrel. These barrel assemblies are hammer forged, machined, chambered, chrome lined, and completely finished by FN Manufacturing.

  • Material Chrome Molly Vanadium per DIN21CrMoV511 (machine gun steel)
  • Chrome per of MIL-STD-171 and QQ-C-320, Class 2 (conventional hard or flake chrome)
  • Phosphate per of MIL-STD-171
  • All barrels are stress relieved after forming and prior to further machining
  • Each barrel and extension has withstood the firing of one M197 high pressure test cartridge or SAAMI commercial equivalent without evidence of failure. After proof firing, each barrel assembly is magnetic particle inspected for cracks, seams, and other injurious defects using a current of 400 to 500 amperes for circular continuous magnetization. All barrels meeting this criteria are marked with an MP near the muzzle.