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Forged Upper Receiver - Stripped

Inventory: Out of Stock
Price: $150.00

Our latest forged upper receivers are manufactured to military contract specification with machined M4 feedramps. This stripped version ships without the forward assist or port door allowing the individual builder to use parts of their choosing. We intentionally leave off the traditional "T" markings on top of the Picatinny rail so they better match unmarked handguard assemblies (KAC, Vltor, etc.) and likewise prevent mismatched engraving styles. Our precision machined logo on top of the rail marks these as an Umbrella Corporation product. This generation includes an anti-rotation pin hole to accommodate handguards that support this feature. As with all of our parts, they carry an unconditional guarantee against material defect and manufacturing failure. Barrel assembly should be performed by a qualified Armorer: Mil-Spec AeroShell 33MS barrel nut grease is included.


  • Precision machined from Aerospace 7075 Aluminum Alloy forging, T6 Temper
  • Certified MIL-A-8625F, Type III, Class 2, Hard Anodic Coating, Flat Black Dye, Non-Reflective, NiAc (Nickel Acetate) Seal
  • Kaiser chemical composition certifications for the 7075 Aluminum
  • Post machining operational reports
  • Anodizing QC certificates of compliance
  • Mil standard 1913 Picatinny accessory rail, no “T” markings
  • M4 feed ramps (requires corresponding barrel extension)
  • Dry film lube bore coating over anodized substrate
  • Compatible with Mil-Spec AR-15 platform lower receivers
  • Dimensional accuracy inspection
  • Sharp edges meticulously de-burred by hand
  • Inert ceramic media blast for uniform finish
  • CNC precision machined Umbrella logo
  • All components, material and packaging made in the USA
  • Fourth Generation