AR-15 Upper: Complete Upper Assemblies
Get the Best Value for AR-15 Complete Upper Assembly
A complete upper is a full AR-15 upper half that includes the upper receiver, a barrel, a muzzle device, and (optional) bolt carrier group. READ MORE
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AT3™
AT3™ FF-ML 11.5″ Complete AR 15 Pistol Upper – .223/5.56 11.5″ Ballistic Advantage Barrel...
Uncompromising quality meets unbeatable value - The AT3 11.5" Pistol Upper with SPEAR M-LOK Handguard AT3 Complete Upper assemblies are Built for Accuracy and Reliability - Guaranteed. Quality Where it...8 Options -
AT3™
AT3™ FF-ML 10.5″ Complete AR 15 Pistol Upper – Choose Your Own 10.5 inch...
Uncompromising quality meets unbeatable value - The AT3 10.5" Pistol Upper with SPEAR M-LOK Handguard AT3 Complete Upper assemblies are Built for Accuracy and Reliability - Guaranteed. Quality Where it...16 Options -
AT3™
AT3™ FF-ML 11.5 Inch Complete AR 15 Pistol Upper – .223/5.56 11.5 Inch Faxon...
AT3's Best Pistol Upper - Featuring an Adjustable Midlength Gas System on an 11.5" Faxon Firearms Barrel AT3 Complete Upper assemblies are Built for Accuracy and Reliability - Guaranteed. Quality...8 Options -
AT3™
AT3™ FF-ML Complete Rifle AR 15 Upper – .223/5.56 16″ Faxon Firearms Barrel –...
Uncompromising quality meets unbeatable value. The AT3 Tactical FF-ML Complete AR-15 Upper, now with a lightweight Faxon Gunner barrel! AT3 Complete Upper assemblies are Built for Accuracy and Reliability -...16 Options -
AT3™
AT3™ FF-ML 10.5 Inch Complete PCC AR 15 Upper – 9mm 10.5 Inch Faxon...
Pistol Caliber, Pistol Configuration - The Foundation of a Great 9mm Subgun AT3 Complete Upper assemblies are Built for Accuracy and Reliability - Guaranteed. Quality Where it Counts - premium...8 Options -
AT3™
AT3™ FF-ML Complete Match Grade AR 15 Upper – .223 Wylde 16 Inch Faxon...
If you're serious about accuracy, don't settle for less. Get the best value for match-grade shooting with AT3's first .223 Wylde Upper Receiver. AT3 Complete Upper assemblies are Built for...24 Options -
AT3™
AT3™ FF-ML 10.5 Inch Complete AR 15 Pistol Upper – 10.5 Inch Faxon .223/5.56...
Uncompromising quality meets unbeatable value - The AT3 10.5" Pistol Upper with SPEAR M-LOK Handguard AT3 Complete Upper assemblies are Built for Accuracy and Reliability - Guaranteed. Quality Where it...24 Options -
Midwest Industries 16 Inch Complete AR 15 Upper with 14 Inch Combat Rail
Lightweight Upper with Combat-Ready M-LOK Handguard It's no secret that Midwest Industries makes quality components for just about every piece of the AR-15. Compared to your standard upper group, this... -
HM Defense MONOBLOC 16 Inch Complete 5.56 AR-15 Upper Receiver with 15 Inch M-LOK...
Cost-Effective Complete Upper Receiver for A High-Performance AR-15 Build This HM Defense BUP Complete Upper Receiver features a 16-inch 4150 Chromoly barrel with a patented integrally machined gas block, and... -
Radical Firearms 16″ 7.62×39 Complete Upper Receiver with M-LOK Handguard
Complete Budget-Friendly Upper Receiver for 7.62mm AR Builds The Radical Firearms 16" 7.62x39 Complete Upper Receiver is a great way to start your 7.62mm AR build. It is an outstanding... -
Spike’s Tactical Complete AR-15 Upper Receiver with 16 Inch M4 Profile 5.56 NATO FN...
Complete Upper with M4 Profile Hammer Forged FN Barrel Rugged and ready for duty, this complete upper from Spike's Tactical features a cold hammer forged barrel made by FN, with... -
Spike’s Tactical Complete AR-15 Upper Receiver with 16 Inch Midlength 5.56 NATO FN Barrel
Complete Upper with Midlength Hammer Forged FN Barrel Rugged and ready for duty, this complete upper from Spike's Tactical features a cold hammer forged barrel made by FN, with a... -
2A Armament Palouse-Lite 16 Inch M-LOK 5.56 NATO AR-15 Upper Receiver
Cost Effective, Super Lightweight Upper 2A Armament's Palouse-Lite upper saves on weight dramatically compared to other complete uppers, but still has premium components. The pencil weight barrel is a super... -
Black Rain Ordnance SPEC15 16 Inch Complete 5.56 AR-15 Upper Receiver
Complete Your Next Classic Carbine with the SPEC15 Complete Upper Receiver The Black Rain Ordnance SPEC-15 5.56 A2 Complete Upper Receiver is the perfect option for building an M4 style... -
Troy A3 16 Inch Complete 5.56 NATO M-LOK Upper Receiver
Troy Complete Complete Upper with Free Float M-LOK Handguard Troy Industries is known for producing equipment made for the pros - and this complete upper is no different. This complete... -
Midwest Industries 16 Inch Complete AR 15 Upper with 15 Inch Combat Rail
Lightweight Upper with Combat-Ready M-LOK Handguard It's no secret that Midwest Industries makes quality components for just about every piece of the AR-15. Compared to your standard upper group, this... -
HM Defense MONOBLOC 16 Inch Complete 5.56 AR-15 Upper Receiver with 10 Inch M-LOK...
Cost-Effective Complete Upper Receiver for A High-Performance AR-15 Build This HM Defense BUP Complete Upper Receiver features a 16-inch 4150 Chromoly barrel with an patented integrally machined gas block, and... -
AT3™
AT3™ FF-ML 10.5 Inch .300 Blackout Pistol Upper for AR-15 – 12″ M-LOK Free...
Uncompromising quality meets unbeatable value - The AT3 10.5" .300 BLK Pistol Upper with SPEAR M-LOK Handguard AT3 Complete Upper assemblies are Built for Accuracy and Reliability - Guaranteed. Quality...8 Options -
AT3™
AT3™ FF-ML 16 Inch .300 BLK Complete AR 15 Upper – .300 AAC Blackout...
Uncompromising quality meets unbeatable value - The AT3 16" .300 BLK Rifle Upper with SPEAR M-LOK Handguard AT3 Complete Upper assemblies are Built for Accuracy and Reliability - Guaranteed. Quality...8 Options -
Radical Firearms 16″ 5.56 NATO Complete AR 15 Upper Receiver with M-LOK Handguard
Complete Budget-Friendly Upper Receiver for 5.56 NATO AR Builds The Radical Firearms 16" 5.56 NATO Complete Upper Receiver is a great way to start your .223/5.56 NATO AR build. It... -
AT3™
AT3™ FF-ML 16 Inch Complete AR 15 PCC Upper – 9mm 16 Inch Faxon...
The competitive edge you need for your Pistol Caliber Carbine - ready for your Glock or Colt style lower AT3 Complete Upper assemblies are Built for Accuracy and Reliability -...8 Options -
AT3™
FF-ML 20 Inch 6.5 Grendel AR 15 Upper – 20 Inch Barrel by Faxon...
Our First Match-Grade Upper, Ready for the Discerning Hunter or Marksman - The AT3 20" 6.5 Grendel Rifle Upper with SPEAR M-LOK Handguard AT3 Complete Upper assemblies are Built for...8 Options -
Primary Weapons Systems MK116 Pro 16 Inch Complete 5.56 NATO AR-15 Upper Receiver
Perfect Balance of a Cost-Effective Piston System & High-Quality Construction The Primary Weapons Systems MK116 Pro Complete Upper is the perfect balance of a cost-effective piston system and high-quality construction...Only$824.95 -
Sons of Liberty Gun Works M4-76 16 Inch Complete 5.56 NATO Upper Receiver
SOLGW Complete Upper with M76 Wedge Lock Handguard This Sons of Liberty Gun Works upper is a great starting point for complete customization. It comes equipped with a 16 inch...Only$855.00
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