Upper Receivers

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...

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...

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...

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...

Luth-AR A3 Upper Receiver Parts Kit The A3 Upper Receiver Parts Kit for AR-15 includes the ejection port cover, ejection port rod, ejection port C-clip, ejection port spring, forward assist button, forward assist spring and forward assist pin. Fits...

The CMMG AR-15 Hand Guard Slip Ring Kit is what you need to secure your handguard. Fits AR-15 Platform Firearms. Does NOT fit .308 AR Firearms. CMMG, Hand Guard Slip Ring Kit, Includes Slip Ring, Spring, and Retaining Ring, Black Fits AR-15...

From 2A Armament Palouse-Lite Forged Upper Receiver that is part of the new 2A Armament Builder Series. It is available as a complete set or as upper or lower only. The Builder Series will offer a vast number of 2A Armament components that have been made...

The durability, reliability and excellent build quality of Colt uppers will provide years of service you can count on. Colt's Manufacturing, Upper, 223REM/556NATO, Black Finish, Dust Cover, Forward Assist, M4 Feed Ramps M4 Feed Ramps Forward...

From 2A Armament Palouse-Lite Forged Upper Receiver that is part of the new 2A Armament Builder Series. It is available as a complete set or as upper or lower only. The Builder Series will offer a vast number of 2A Armament components that have been made...

Precision Reflex - Flat Top Upper Receiver w/ Forward assist and Dust Cover AR15 Forged Flat Top Receiver is constructed of T6 7075 forged aluminum machine to Mil spec standards. Comes with dust cover and forward assist. Avaialable in Black or...

Aero Precision, Stripped Upper, Flat Dark Earth, Special Edition Texas For AR15 Precision machined M4 feed ramps Mil-spec dimensions Manufacturing a great receiver isn't just about what the end product looks like. It's about what it feels like,...

SilencerCo's AR-15 upper receiver is made from billet 7075-T6 aluminum, it is precision machined for compatibility with all of your preferred parts. With the SilencerCo billet AR-15 upper receiver, you get the materials, finish, and features you want and...