Upper Receivers

The Triarc Systems TSR-15 SPR Upper seeks to redefine what a factory SPR barreled assembly can be; incorporating the most functional component choices possible, Triarc System has invigorated the tried and true concept of a 16" suppressed 5.56 rifle...

NOTE: This part features a colored anodized finish. These finishes are held to different aesthetic standards than parts finished in black anodizing or Cerakote. For more information on colored anodizing visit our Knowledge Center. Our state of...

Barrel• 16” 5.56mm 416R Stainless with 1:7 twist• Individual serialized barrel for QC purposes• Hand polished Noveske Match Chamber• Mid length gas tube system• Noveske marked gas block: Low profile, .750” journal,...

Aero Precision AR15 Atlas R-One M-LOK Handguard ODG Anodized  The ATLAS R-ONE is the newest addition to the Aero Precision Handguard lineup. Machined from 6061-T6 Aluminum, the R-ONE line of handguards are designed with size and weight in mind,...

Aero Precision AR15 Atlas R-One M-LOK Handguard Kodiak Brown  The ATLAS R-ONE is the newest addition to the Aero Precision Handguard lineup. Machined from 6061-T6 Aluminum, the R-ONE line of handguards are designed with size and weight in mind,...

Luth-AR M16 A1 Assembled Upper Receiver - Black  Looking to build a high-quality retro looking AR? Start your project with a complete A1 upper receiver anodized. Comes with the standard features of a Mil-Spec upper receiver and is forged from...

AR15 ASSEMBLED UPPER RECEIVER, NO FORWARD ASSIST - ANODIZED BLACK The AR15 Assembled Upper Receiver comes with the port door already installed. This specific model does not have forward assist provisions. Forged from 7075-T6 aluminum, this assembled...

Aero Precision M5 16" .308 CMV Complete Upper Receiver with ATLAS R-ONE Handguard - OD Green Anodized Aero Precision APAR538772M22: The R-ONE handguards are designed with size and weight in mind, while still providing plenty of real-estate to...

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...