5.56 NATO Upper Kit
Introducing the Alexander Arms 5.56 NATO Upper Kit! This kit has everything you need to get started on your very own 5.56 upper build! The kit includes:
  • -Mil-Spec flat top upper receiver (port door and forward assist installed)
  • -Our very own high quality 16" chrome moly, extreme lightweight barrel with a 1:7 twist and a melonite finish, threaded 1/2-28 TPI RH
  • -Your choice of either a Low Profile or Picatinny Railed Gas Block
  • -Mid-length Gas tube
  • -Mil-Spec charging handle
The kit does not include a bolt, bolt carrier, barrel nut, or handguard.
We are proud to introduce LiFe, the next generation of ferritic nitrocarburizing.  The LiFe process is not just another trademark for decade’s old technology, but an evolutionary method of ferritic nitrocarburizing and oxidizing simultaneously. (US7238244 B2 Patent)

 The LiFe process results are unparalleled on firearms components, enhancements include:

    Increased hardness and wear resistance
    Increased corrosion resistance
    Lower coefficient of friction
    Integral complex oxide layer
Gas Block - Please select either a Low Profile or Picatinny Railed Gas Block.
Base Price: $630.00
Selected Options: $0.00
Total Price: $630.00
Hot Deal Bargain Great Idea
This Alexander Arms® 5.56 NATO kit is fully-inspected by Alexander Arms® for proper critical dimensions. This product carries our standard one-year limited warranty against factory defects of the parts being sold.  Warranty does not cover the final functionality of the rifle built with this kit. Because of the advanced nature of firearms assembly and the possibility of physical harm to a user, it is expected that the assembler of this kit has adequate technical knowledge of firearms assembly. All returns must be submitted within 30 days of being received with the orignal invoice. Products are only valid for return if they are in new unused condition. Return of individual pieces from a kit for refund is not allowed.
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