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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Luth-AR Forged A1 Assembled AR-15 Upper Receiver
Luth-AR A1 Upper: Retro AR Perfection - Complete & Ready to Rock! Step back in time with Luth-AR's A1 Assembled Upper Receiver. This meticulously crafted upper brings classic AR-15 styling... -
NEW
Luth-AR Forged A2 Assembled AR-15 Upper Receiver
Luth-AR A2 Upper: Classic AR-15 Style - Fully Assembled & Ready! Embrace the iconic A2 design with Luth-AR's Forged A2 Assembled AR-15 Upper Receiver. This meticulously crafted upper brings timeless... -
NEW
Foxtrot Mike 16″ Side Charging AR-15 Upper Reciever – .223 Wylde – Black
Foxtrot Mike 16" Side Charging AR-15 Upper Receiver: Versatile AR-15 Performance This Foxtrot Mike upper receiver offers a unique side-charging design and .223 Wylde chambering for enhanced versatility and ergonomics.... -
AT3™RECOMMENDED
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...9 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... -
NEW
Aero Precision M4E1-T AR15 Complete Upper 300 BLK 8″ – No BCG/Charging Handle
Aero Precision M4E1-T 8" 300 Blackout Upper Build your ultimate 300 BLK AR pistol with Aero Precision's enhanced M4E1-T complete upper. This assembly centers around an 8" CMV barrel chambered...2 Options2 Options2 Options -
NEW
Aero Precision M4E1-T AR15 Complete Upper .223/5.56 NATO 14.5″ – No BCG/Charging Handle
Aero Precision M4E1-T Enhanced AR-15 Upper Upgrade your AR build with Aero Precision's M4E1-T complete upper receiver. This top-quality assembly features a 14.5" 5.56 NATO barrel with a mid-length gas...2 Options2 Options2 Options -
NEW
Aero Precision M4E1-T AR15 Complete Upper .223/5.56 NATO 10.5″ – No BCG/Charging Handle
Aero Precision M4E1-T 10.5" AR-15 Complete Upper Upgrade your AR build with Aero Precision's enhanced M4E1-T complete upper featuring a 10.5" barrel and free-float ATLAS handguard. This top-quality assembly is...2 Options2 Options2 Options -
AT3™
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 Options6 Options6 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... -
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... -
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 Options5 Options5 Options -
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... -
AT3™
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... -
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 Options2 Options2 Options -
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... -
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 Options2 Options -
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
Other AR-15 Upper Receivers and Parts:
Upper parts
AR-10 Upper Receivers
AR-15 Uppers
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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