16″ Wylde Twist Fluted Upper Foundation Package

$549.95 $299.95

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You’ve done the basic, now go to the next level. Take advantage of this one time deeply discounted high quality package. Includes everything pictured.


  • 16″ Barrel
  • Twist Fluting
  • Mid Length Gas
  • 1lb 15.8oz Total Weight
  • Milspec 4150V Steel
  • Extensions Are 416 Stainless
  • Melonite/Isonite Treated (QPQ)
  • Wylde Chamber (can shoot .223 or 5.56)
  • M4/Extended Feed Ramps
  • .750 Gas Block Area
  • .078″ Gas Port Diameter
  • 1/2×28 Thread Pitch
  • 1-8 Twist Rate
  • 5R Button Rifled
  • 100% Made In The U.S.A.
  • Read More About The Barrel Here


  • BCM Gunfighter
  • Mod 3/Large Latch
  • Forged 7075 T-6 Aluminum
  • Anodized Per Milspec
  • Mention Medium or Large in ‘Notes’ Section of Checkout Page


  • Aero Precision 7075 T-6 Forged
  • Made to Mil Spec Dimensions
  • Laser T Markings
  • M4 Feed Ramps
  • Weighs 8.35oz
  • Anodized Black
  • Includes Forward Assist and Zero Stress Ejection Port Assy (not installed)


  • Toolcraft M16 EXO Coated/Nickel Boron
  • EXO Coated Parts Include: Carrier, Gas Key, Cam Pin, Bolt & Extractor
  • Inside Diameter is Coated As Well
  • 5.56mm, .223rem or 300BLK
  • Properly Staked EXO Coated Gas Key
  • Carpenter 158 Bolt, Shot Peened and MPI Tested/Marked
  • Extractor is AISI 4140 Or 4340 Gun Quality, Annealed, Cold Drawn & Stress Relieved To BHN 187/229
  • Properly Heat Treated/Quenched Milspec 8620 Steel
  • Proprietary FailZero EXO Coating (Nickel Boron)
  • Marked w/ Military Cage Code 1B1B6
  • CNC Machined To Exacting Specifications
  • Satisfaction Guaranteed
  • 100% U.S. Made in North Carolina

To make this a complete upper, select a gas block, gas tube, muzzle device and hand guard separately. If you want us to build and test fire/function check and ship completely assembled, select this option


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