Gen 3 Forged Upper Receiver - Assembled
Our latest forged upper receivers are manufactured to military contract specification. They feature machined M4 feedramps and come fully assembled with round forward assist and port door/dust cover installed. And 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 deep laser engraved logo on top of the rail marks these as an Umbrella Corporation product. 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.
Specifications
- 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
- Anchor-Harvey certifications for raw forgings verifying physical properties and aged condition
- 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 media blast for uniform finish
- High power, deep laser engraved Umbrella logo
- Ejection port door and forward assist installed
- All components, material and packaging made in the USA
- Third Generation