Details
Details
The Lewis Machine And Tool M4 Assembled Upper Receiver is a forged, flat-top upper that ships from the factory with the forward assist and dust cover already installed. This upper receiver is compatible with Mil-Spec parts and lowers, giving builders a reliable foundation for a high-quality AR-15.
Features:
- Forged aluminum construction
- Hardcoat anodized black finish
- Laser-engraved T-marked Picatinny rail
- Forward assist and dust cover installed
- Compatible with Mil-Spec AR-15 lowers and parts
The laser-engraved T-marks on the flat-top rail make it easy to return an optic to the same spot if it's ever removed, and the hardcoat anodizing meets military specifications for a durable, corrosion-resistant finish. With the forward assist and dust cover pre-installed, this upper is ready to pair with a barrel, BCG, and handguard.
Lewis Machine And Tool has supplied the U.S. military, law enforcement, and government agencies with high-quality weapon systems since 1980, and builds every product in America to that same standard of precision engineering.
Specifications
California Prop 65 warning
WARNING: This product can expose you to chemicals, which are known to the State of California to cause Cancer and Reproductive Harm. For more information go to www.P65Warnings.ca.gov.Ratings & Reviews
1 review
Disappointed
by Some Guy -
Ordered this to pair a MARS lower (which is fine). PA was timely, great as usual. The forged upper in the box was either a "blem" or had skipped at least one QA step. Multiple, visible issues with the anodizing showing bare aluminum. So, I returned it and used a different brand upper. Didn't bother to gauge this one. If you're reading this, may your LMT luck be better.