.223/5.56 AR-15 Build Kits and Assemblies
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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 -
TacFire RK556 Unassembled AR-15 Complete Rifle Kit
Unassembled Rifle Kit with Free-Float Handguard Build a complete AR-15 that can do it all at an excellent price point with Tacfire. This kit ships to your door unassembled, with... -
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 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 -
Rosco Manufacturing 11.5 Inch Sauce Pack – AR-15 Stainless Barrel, BCG, Gas Block &...
11.5 Inch Sauce Pack with Bloodline Nitride AR-15 Barrel The Rosco "Sauce Pack" delivers high quality components for the core of your rifle build. This kit includes a 11.5 inch... -
STNGR 16″ .223 Wylde Complete Upper Receiver w/ 15″ HWK® Handguard, BCG & CH
STNGR Complete .223 Wylde Upper with HWK Handguard Introducing the new STNGR Complete Upper. As the name suggests, it comes complete with all the parts needed to have you sending... -
Rosco Manufacturing 13.7 Inch Sauce Pack – AR-15 Stainless Barrel, BCG, Gas Block &...
13.7 Inch Sauce Pack with Purebred Stainless AR-15 Barrel The Rosco "Sauce Pack" delivers high quality components for the core of your rifle build. This kit includes a 13.7 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... -
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... -
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 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™ Complete Rifle Kit – Magpul Lower Build Kit – .223/5.56 16 Inch Ballistic...
Instant Rifle. Just Add Lower. Don't settle for the budget-line rifle kits you're used to seeing. Get a complete assembled upper from AT3 Tactical, with a lower build kit including...16 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... -
Rosco Manufacturing 10.5 Inch Sauce Pack – AR-15 Stainless Barrel, BCG, Gas Block &...
10.5 Inch Sauce Pack with Bloodline Nitride AR-15 Barrel The Rosco "Sauce Pack" delivers high quality components for the core of your rifle build. This kit includes a 10.5 inch...Only$295.95 -
Rosco Manufacturing 12.5 Inch Sauce Pack – AR-15 Stainless Barrel, BCG, Gas Block &...
12.5 Inch Sauce Pack with Bloodline Nitride AR-15 Barrel The Rosco "Sauce Pack" delivers high quality components for the core of your rifle build. This kit includes a 12.5 inch... -
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 -
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 M4-89 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...Only$950.00 -
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 -
Midwest Industries 10.5 Inch Complete AR 15 Upper with 9.25 Inch Combat Rail
Combat-Ready AR-15 Pistol Upper with M-LOK Handguard If you're planning to run an AR Pistol, you'll be hard-pressed to find better options for a complete upper assembly. Midwest Industries has...Only$554.95 -
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...Only$739.00 -
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...Only$584.95 -
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...Only$640.00
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