The standard issue M4 upper all military members have grown to love. Uppers consist of a 16" carbine length M4 typically from FN, Colt, or Bushmaster. These barebones uppers are your standard issue (before mods) builds consisting of a polymer two piece handguard, A2 style front site post, mil-spec phosphorus coated BGC, etc... As basic as you can get.. Looking for a great robust baseline to start your build, look no further. As with most of our products, these come as a complete build from our supplier. If you are seeking to sell parts or uppers, send an email direct and we will be in touch!

• Standard issue M4 upper
• 16" carbine length M4 from FN, Colt, or Bushmaster
• Polymer two piece handguard
• A2 style front site post
• Mil-spec phosphorus coated BCG
• Perfect baseline to start your build