Assembled Upper Receivers
Assembled AR15 and AR10 Upper Receivers come with all the little parts installed and only need drop-in parts such as a Bolt Carrier Group and Charging Handle to be range ready. Billet, Forged, Ambidextrous and More on AT3 Tactical.
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AT3™Sale!
AT3 Upper Receiver Black + AT3 Bolt Carrier Group + Breek Arms Warhammer Charging...
Complete your Next Build with AT3's Top-Selling Billet Upper Receiver and BCG plus the Trusted Breek Arms Warhammer Charging Handle Save by bundling vs purchasing the parts individually, plus free... -
AT3™RECOMMENDEDSale!
AT3™ Slick Side Upper | Billet Upper Receiver for AR-15
Tough, Sleek, and ready for the AT3 SPEAR M-LOK Handguard Machined from billet aluminum, this unique slick-side upper receiver has no forward assist, includes a dust cover, and matches perfectly...8 Options -
SOTA Arms Assembled Mil-Spec AR-15 Upper Receiver
High Value Forged Upper with Forward Assist and Dust Cover Need your build to be on-time, under budget, with an upper you can trust, forward assist and all? This assembled... -
AT3™Sale!
AT3™ Slick Side AR-15 Upper with Black Nitride 5.56 Bolt Carrier Group
AT3 Black Nitride Bolt Carrier Group with Slick Side Billet Upper - 8 Colors to Choose From Get a head start on your build with the AT3 Black Nitride Bolt...8 Options -
Aero Precision Upper Receiver Assembled for AR-15 w/ Forward Assist & Dust Cover
High-Quality AR-15 Assembled Upper Receiver With Port Door & Forward Assist The Aero Precision AR15 Assembled Upper Receiver is an excellent upgrade for your AR build that comes with the...5 Options -
Aero Precision M4E1 Threaded Assembled Upper Receiver for AR-15
Threaded High-Quality Upper Receiver To Make Your AR Build Stand Out The Aero Precision M4E1 Threaded Assembled Upper Receiver is a bold new offering from Aero Precision that features a...6 Options -
RECOMMENDED
Aero Precision M5 .308 Assembled Upper Receiver for AR-10
A Sleek & Solid Assembled Upper Receiver For .308 Builds The Aero Precision M5 .308 Assembled Upper Receiver is an outstanding upgrade that creates a sleek and solid look for...6 Options -
Anderson Manufacturing AM-15 Dissipator Upper Receiver with BCG and Charging Handle
Anderson Manufacturing AM-15 Dissipator Upper Receiver with BCG and Charging Handle The AM-15 Dissipator Upper Receiver by Anderson is a modern take on a classic, offering an enhanced shooting experience... -
Aero Precision M4E1 Enhanced AR-15 Upper Receiver with Forward Assist
Enhanced M4E1 Upper with Internal Barrel Nut The Aero M4E1 Enhanced Upper has a unique design and core function that separates it from standard AR-15 uppers. Instead of the typical...2 Options -
Ballistic Advantage AR15 Enhanced Upper Receiver
Ballistic Advantage AR15 Enhanced Upper Receiver This AR15 Assembled Upper Receiver is forged from 7075-T6 aluminum and is precision machined to mil-spec M16/M4 specifications. It features M4 feed ramps and... -
Bravo Company Mil-Spec AR-15 Upper Receiver
Bravo Company Mil-Spec AR-15 Upper Receiver Bravo Company's Upper is an exceptional addition to any firearm enthusiast's collection. This upper is specifically designed with precision in mind, and it shows... -
Aero Precision M5 Enhanced Assembled AR-10 Upper Receiver with Forward Assist
Enhanced M5E1 Upper with Internal Barrel Nut The Aero Precision M5 Enhanced Upper features an internal steel barrel nut, and a secondary forged mounting surface for Aero Precision M5 enhanced...5 Options -
Aero Precision Assembled Slick Side AR 15 M4E1 Upper Receiver – No Forward Assist
Billet-Like Slick Side Upper for Lightweight AR-15 Aero Precision now offers the M4E1 version of their assembled slick side upper. You get the sharp angles and sleek facets typical of...2 Options -
Ballistic Advantage AR15 Upper Receiver
Ballistic Advantage AR15 Upper Receiver This assembled upper receiver is forged from 7075-T6 aluminum and has been precision machined to mil-spec M16/M4 specifications. It features M4 feed ramps, .250 takedown... -
Ballistic Advantage AR10 Upper Receiver
Ballistic Advantage AR10 Upper Receiver The Ballistic Advantage BA10 Assembled Upper Receiver is made from 7075-T6 aluminum, which is forged to DPMS Gen 1 specifications and has M4 feed ramps... -
Luth-AR Assembled AR-15 Upper Receiver with Charging Handle
Luth-AR Mil-Spec Upper with Charging Handle This assembled, forged upper receiver comes with a mil-spec charging handle so you can start your next build right away. Pick your barrel assembly,... -
Aero Precision Assembled XL Upper Receiver for Big Bore AR-15 – Enlarged Ejection Port
AR-15 Upper for Big Bore Calibers - .450 Bushmaster, .458 SOCOM, .50 Beowulf If you're planning a big bore build for your AR-15, one area that often goes overlooked is...2 Options -
Discontinued: Aero Precision Assembled Slick Side AR-15 Upper Receiver – No Forward Assist
This product is discontinued, but the M4E1 Slick Side is still available here! Slick, Simple, and Perfect for a Fat-Free AR Build If you're tired of looking at that forward assist...2 Options -
KE Arms Forged AR 15 Upper Receiver with Dust Cover and Forward Assist
Forged KE Arms Upper with T-Marks and Forward Assist This assembled upper receiver from KE arms comes with the forward assist and dust cover pre-installed, so you can focus on...Only$116.96 -
KE Arms Assembled Slick Side AR 15 Upper Receiver – No Forward Assist
Slick Side Upper with Dust Cover and Brass Deflector If you prefer not to have a forward assist, but still want a high-quality forged upper receiver, the KE Arms Slick...Only$107.96 -
Luth-AR LR-308 Upper Receiver with Optional Charging Handle
DPMS Low Tang Upper Receiver Luth-AR's AR 308 upper receiver features 6061-T6 aluminum construction with thick supports for the barrel extension. This receiver specifically mates to DPMS Low Profile handguards...2 Options2 Optionsfrom $150.352 Options -
VLTOR MUR AR-15 Upper Receiver with Forward Assist and Ejection Port Cover
VLTOR Enhanced AR-15 Upper with Forward Assist The VLTOR MUR (Modular Upper Receiver) is a mil-spec compatible upper with thicker, heavier duty construction than the standard. The walls of the...Only$199.99
Other AR-15 Upper Receivers and Parts:
Upper parts
AR 15 Dust CoversAR-10 Upper Receivers
AR-15 Uppers
Assembled Upper Receivers
Stripped Upper ReceiversAssembled AR15 and AR10 Upper Receivers come with all the little parts installed and only need drop-in parts such as a Bolt Carrier Group and Charging Handle to be range ready. Billet, Forged, Ambidextrous and More on AT3 Tactical.
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