Colt 14.5" M4 Government Profile barrel - stripped (FSB removed)

M4 Government Profile - 4150 Steel Alloy, 5.56 NATO, 1:7 twist Chrome Line, Phosphated Exterior

This is a standard M4 barrel with the lighter Government profile.  Many M4 and M4A1 rifles used this barrel.  The other barrel used was a heavier profile, called the SOCOM barrel, which was more appropriate to hold the M203 grenade launcher.  As the barrel originally came from the factory with an A-frame Front Sight Base, it has been removed, and there are grooves where the pins were drilled to attach the FSB.  Charlie's has chemically treated those areas of steel to be black and resist corrosion.

Features and Specifications

• Colt factory new, or take off from new Colt M4 rifle
• High Pressure tested and MPI inspected
• 14.5" barrel with front sight base removed
• 5.56mm NATO 1:7, MP tested
• Stamped with Colt CAGE code
• Standard military carbine-length gas system
  
• .750" gas journal
• M4 barrel extension and feed ramps
• Chrome lined
• Parkerized 4150 CMV steel barrel - standard military
• 20oz
• No corners cut - solid Colt barrel