AR-15 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...
The AT3 11.5" Pistol Upper with SPEAR M-LOK Handguard - Made to Order and Ships in 7 Days AT3 Complete Upper assemblies are Built for Accuracy and Reliability - Guaranteed....8 Options -
AT3™
AT3™ FF-ML 10.5″ Complete AR 15 Pistol Upper – Choose Your Own 10.5 inch...
The AT3 10.5" Pistol Upper with SPEAR M-LOK Handguard - Made to Order and Ships in 7 Days AT3 Complete Upper assemblies are Built for Accuracy and Reliability - Guaranteed....16 Options -
AT3™
AT3™ FF-ML Complete Rifle AR 15 Upper – .223/5.56 16″ Ballistic Advantage Barrel –...
16 Inch Lightweight AT3 Upper with 15 Inch Handguard - Made to Order and Ships in 7 Days AT3 Complete Upper assemblies are Built for Accuracy and Reliability - Guaranteed....16 Options -
AT3™
AT3™ FF-ML 11.5 Inch Complete AR 15 Pistol Upper – .223/5.56 11.5 Inch Faxon...
AT3 11.5" Pistol Upper with Faxon Firearms Midlength Barrel - Made to Order and Ships in 7 Days AT3 Complete Upper assemblies are Built for Accuracy and Reliability - Guaranteed....8 Options -
AT3™
AT3™ FF-ML 10.5 Inch .300 Blackout Pistol Upper for AR-15 – 12″ M-LOK Free...
AT3 10.5" .300 BLK Pistol Upper with SPEAR M-LOK Handguard - Made to Order and Ships in 7 Days AT3 Complete Upper assemblies are Built for Accuracy and Reliability -...8 Options -
AT3™
AT3™ FF-ML 16 Inch .300 BLK Complete AR 15 Upper – .300 AAC Blackout...
The AT3 16" .300 BLK Rifle Upper with SPEAR M-LOK Handguard - Made to Order and Ships in 7 Days AT3 Complete Upper assemblies are Built for Accuracy and Reliability...8 Options -
AT3™
AT3™ FF-ML 10.5 Inch Complete PCC AR 15 Upper – 9mm 10.5 Inch Faxon...
AT3 10.5" 9mm Complete Upper - Made to Order and Ships in 7 Days AT3 Complete Upper assemblies are Built for Accuracy and Reliability - Guaranteed. Quality Where it Counts...8 Options -
AT3™
AT3™ FF-ML 16 Inch Complete AR 15 PCC Upper – 9mm 16 Inch Faxon...
AT3 16" 9mm Complete Upper with M-LOK Handguard - Made to Order and Ships in 7 Days AT3 Complete Upper assemblies are Built for Accuracy and Reliability - Guaranteed. Quality Where...8 Options -
AT3™
AT3™ FF-ML 10.5 Inch Complete AR 15 Pistol Upper – 10.5 Inch Faxon .223/5.56...
AT3 10.5" Pistol Upper with SPEAR M-LOK Handguard - Made to Order and Ships in 7 Days AT3 Complete Upper assemblies are Built for Accuracy and Reliability - Guaranteed. Quality...24 Options -
AT3™
AT3™ FF-ML Complete Match Grade AR 15 Upper – .223 Wylde 16 Inch Faxon...
AT3 16" 223 Wylde Complete Upper with M-LOK Handguard - Made to Order and Ships in 7 Days AT3 Complete Upper assemblies are Built for Accuracy and Reliability - Guaranteed....24 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... -
Sons of Liberty Gun Works M4-EXO3 13.7 Inch Pinned and Welded Complete 5.56 NATO...
SOLGW Complete Upper with EXO3 Handguard and NOX Flash Hider This complete AR-15 upper has a more economical price, with all the great components that really matter. This complete upper... -
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... -
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... -
Radical Firearms 16″ 6.5 Grendel AR 15 Complete Upper Receiver with M-LOK Handguard
Complete Budget-Friendly Upper Receiver for 6.5 Grendel AR Builds The Radical Firearms 16" 6.5 Grendel Complete Upper Receiver is a great way to start your 6.5 Grendel AR build. It... -
Primary Weapons Systems MK116 MOD 1-M 16 Inch Complete .223 Wylde AR-15 Upper Receiver
Combines Agility & Reliability For A Sleek, Efficient Piston Driven Upper Assembly The PWS MK116 MOD 1-M features the PWS Mid-length long-stroke piston system that combines the agility of the... -
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... -
Sons of Liberty Gun Works M4-89 13.7 Inch Pinned and Welded Complete 5.56 NATO...
SOLGW Complete Upper with M-89 Handguard and NOX Flash Hider Sons of Liberty Gun Works offers this complete upper with numerous improvements over their tried-and-true designs. This upper features a... -
Troy A4 16 Inch Complete 5.56 NATO M-LOK Upper Receiver with Backup Sights
Complete Troy Upper with SOCC Handguard and Backup Iron Sights Duty ready with modern features for the pros, the Troy A4 complete upper gives you all the tools you need... -
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... -
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™
FF-ML 20 Inch 6.5 Grendel AR 15 Upper – 20 Inch Barrel by Faxon...
AT3 20" 6.5 Grendel Rifle Upper with SPEAR M-LOK Handguard - Made to Order and Ships in 7 Days AT3 Complete Upper assemblies are Built for Accuracy and Reliability -...8 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...Only$579.95 -
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...Only$775.00
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