Upper Receivers

The M4E1 Threaded Upper Receiver features a new angular machined design that helps it stand apart from standard mil-spec upper receivers. This upper receiver features the same enhanced body profile as our M4E1 Enhanced Upper Receiver but is threaded to...

HARRINGTON & RICHARDSON M16A2 STRIPPED UPPER RECEIVER W/ M4 FEED RAMP, BLACK Harrington and Richardson stripped M16A2 Uppers are shipping. These are perfect for your clone builds or a solid base for any upper you want to start. Material is 7075-T6...

HARRINGTON & RICHARDSON M16A2 STRIPPED UPPER RECEIVER, GRAY Harrington and Richardson stripped M16A2 Uppers are shipping. These are perfect for your clone builds or a solid base for any upper you want to start. Material is 7075-T6. Finish is...

The Sons of Liberty Gun Works Broadsword M4-89 Stripped Upper Receiver, part of the BROADSWORD Billet series, is a 7075-T6 billet aluminum receiver with a hardcoat anodized black finish. Ideal for starting a new AR-15 build, it perfectly matches the...

AR15 STRIPPED UPPER RECEIVER - GOLD ANODIZED - APSL100527 NOTE: This part features a colored anodized finish. For more information READ DESCRIPTION. NOTE: This part features a colored anodized finish. These finishes are held to...

AR15 STRIPPED UPPER RECEIVER - PURPLE ANODIZED - APSL100509 NOTE: This part features a colored anodized finish. For more information READ DESCRIPTION. NOTE: This part features a colored anodized finish. These finishes are held to...

Noveske - VLTOR MUR Upper Receiver (Noveske Marked) - Black (03000082) Noveske marked Vltor Modular Upper Receiver Anti-rotation Noveske handguard interface Machined from forged Aircraft-grade 7075 aluminum Stress relieved, heat treated, aged twice...

AR15 ASSEMBLED UPPER RECEIVER - BURNT BRONZE CERAKOTE The AR15 Assembled Upper Receiver comes with the port door and forward assist already installed. Forged from 7075-T6 aluminum, this assembled upper is precision machined to mil- spec M16/M4...

AR15 ASSEMBLED UPPER RECEIVER - OD CERAKOTE The AR15 Assembled Upper Receiver comes with the port door and forward assist already installed. Forged from 7075-T6 aluminum, this assembled upper is precision machined to mil- spec M16/M4 specifications and...

Aero Precision M4E1 Threaded AR-15 Upper Receiver - ODG Anodized NOTE: This part features a colored anodized finish. These finishes are held to different aesthetic standards than parts finished in black anodizing or Cerakote. By buying this part, you...

LBE Unlimited is a leading producer of US Made gun parts and accessories, particularly for the AR-15 platform. Whether you're in the middle of an AR build or you're just looking to upgrade a key component, LBE has you covered with reliable parts and...