Final Hours To Save Up To 40% | Shop Now

Final Hours To Save Up To 40% | Shop Now

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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Sale!

Radical Firearms 16" 5.56 NATO Complete Upper Receiver with M-LOK Handguard - AT3 Tactical

(1)

Radical Firearms 16″ 5.56 NATO Complete Assembled AR-15 Upper Receiver with M-LOK Handguard

Sale!

AT3 Tactical 10.5 Inch 9mm Complete AR-15 Upper Assembly - No BCG or Charging Handle copy

(3)

AT3™ 10.5 Inch Assembled PCC AR-15 Upper – 9mm 10.5 Inch Faxon Firearms Barrel – No BCG/CH

Sale!

STNGR Complete AR-15 Upper Receiver with 16 Inch Barrel, BCG and Charging Handle - HWK Handguard, Black

(2)

STNGR 16″ .223 Wylde Complete Assembled Upper Receiver w/ 15″ HWK® Handguard, BCG & CH

RECOMMENDED

Sale!

STNGR Complete AR-15 Upper Receiver with 16 Inch Barrel, BCG and Charging Handle - VLCN Handguard, Black

(1)

STNGR 16″ .223 Wylde Complete Assembled Upper Receiver w/ 15″ VLCN® Handguard, BCG & CH

Sale!

AT3™ 16″ .22LR Complete Assembled Billet Upper with BCG and Charging Handle

Sale!

AT3™ Forged AR-15 Upper Receiver Kit - Includes Matching Forward Assist & Dust Cover Assemblies

AT3™ Forged AR-15 Upper Receiver Kit – Includes Matching Forward Assist & Dust Cover Assemblies

RECOMMENDED

Sale!

AT3 Slick Side Billet Upper Receiver - 7 Colors Available

(137)

AT3™ Slick Side Upper | Billet Upper Receiver for AR-15

RECOMMENDED

Sale!

STNGR Complete AR-15 Upper Receiver with 16 Inch Barrel, BCG and Charging Handle - RPTR Handguard, Black

(1)

STNGR 16″ .223 Wylde Complete Assembled Upper Receiver w/ 15″ RPTR® Handguard, BCG & CH

RECOMMENDED

Sale!

STNGR Complete AR-15 Upper Receiver with 16 Inch Barrel, BCG and Charging Handle - VYPR Handguard, Black

(1)

STNGR 16″ .223 Wylde Complete Assembled Upper Receiver w/ 15″ VYPR® Handguard, BCG & CH

NEW

Daniel Defense M4A1 FSP 14.5″ 5.56 NATO Complete Upper Receiver – RIS II – Pinned & Welded SureFire SF3P – FDE

NEW

CMMG Resolute MK4 AR-15 Complete Upper Receiver – 16.1″ – 6mm ARC – Armor Black Cerakote

AT3 Tactical 16 Inch 5.56 NATO Lightweight Complete AR-15 Upper Assembly - No BCG or Charging Handle

(10)

AT3™ Assembled AR-15 Upper – .223/5.56 16″ Ballistic Advantage Barrel – No BCG/CH

(21)

SOTA Arms Assembled Mil-Spec AR-15 Upper Receiver

Slick Side Upper with Ambi Charging Handle and Bolt Carrier Group

(2)

AT3™ Slick Side Upper with Bolt Carrier Group and Breek Arms Warhammer Charging Handle

Black Upper with BCG

(11)

AT3™ Slick Side AR-15 Upper with Black Nitride 5.56 Bolt Carrier Group

AT3 Tactical 16 Inch 300 BLK Complete AR-15 Upper Assembly - No BCG or Charging Handle

(4)

AT3™ 16 Inch Assembled AR-15 PCC Upper – 9mm 16 Inch Faxon Firearms Barrel – No BCG/CH

2A Basics 9mm 16 Inch Complete AR-9 Upper Receiver - No BCG or Charging Handle

AT3™ 9MM 16″ Assembled Upper – 2A Basics ASAL Handguard – No BCG/Charging Handle

AT3 Complete .223 Wylde Match Grade Upper Faxon Heavy Fluted Barrel

(4)

AT3™ Assembled Match Grade AR-15 Upper – .223 Wylde 16 Inch Faxon Firearms Barrel – No BCG/CH

AT3™ 16″ .22LR Complete Assembled Forged Upper with BCG, Charging Handle, & Magazine - 8 Colors

(1)

AT3™ 16″ .22LR Complete Assembled Forged Upper with BCG, Charging Handle, & Magazine – 8 Colors

NEW

STNGR 16" .223 Wylde w/ 15" VYPR AR-15 JNL Ready Build Kit

STNGR 16″ .223 Wylde w/ 15″ VYPR AR-15 JNL Ready Build Kit

NEW

STNGR 16" .223 Wylde w/ 15" RPTR AR-15 JNL Ready Build Kit

STNGR 16″ .223 Wylde w/ 15″ RPTR AR-15 JNL Ready Build Kit

NEW

STNGR 14.5" 5.56 w/ 15" HWKXL AR-15 JNL Ready Build Kit

STNGR 14.5″ 5.56 w/ 15″ HWKXL AR-15 JNL Ready Build Kit

NEW

AT3 Tactical 22LR 16" w/ 15" ASAL AR-15 JNL Ready Build Kit

AT3 Tactical 22LR 16″ w/ 15″ ASAL AR-15 JNL Ready Build Kit

NEW

AT3 10.5" 9mm PCC AR-15 JNL Ready Build Kit

AT3 10.5″ 9mm PCC AR-15 JNL Ready Build Kit