New: From Mule State Outdoors

Left Eject AR15 upper receiver

Colt M4 barrel, chrome lined phosphate coated with A2 flash hider

Cage code 13629 MP

556, 1/7 twist 

Left Eject slick side Billet upper

Mil-Spec Charging Handle

KAK Left Handed BCG, Phosphate and Chrome line

  • M16 Auto Profile Carrier Machined from Aircraft/ Bearing Quality 8620 Steel, Properly Heat Treated, Ground to Perfection, chrome lined phosphate finish
  • Bolt is machined from a single piece aircraft/bearing quality 9310 steel, heat treated properly, precision ground, Shot Peened and MPI’d, phosphate finsh 
  • Firing pin is machined to the mil-spec print from 8740, precision ground, and chrome plated
  • One Piece Billet Fully Machined Enhanced Extractor, Phosphate coated for Increased reliability and corrosion resistance
  • Phosphate Cam Pin
  • S7 tool steel ejector and extractor retaining pin
  • 4130 Gas Key, chrome lined phosphate, precision staked using our hydraulic staking machine, chrome lined phosphate finish
  • KAK Carrier Key Screws- T25 drive, Grade 8, Properly Heat Treated 

Please call, message, or email us with any questions.

Upper is built to spec, barrel and BCG has been headspaced .

Free shipping to the lower 48 states. No Tax Outside of Missouri 

Thank You