AT3 Tactical
AT3 Tactical
Fast, Free Shipping on Orders over $139
Quality Parts that Don't Break the Bank
4.8 Stars from 20.7K Reviews

Spooky Savings Up To 30% Off | Shop Now

Red Complete Upper Assemblies

17 products
AT3™ FF-ML 11.5" Complete Pistol Upper - .223/5.56 11.5" Ballistic Advantage Barrel - 12" M-LOK Free Float Handguard

AT3™ 11.5″ Assembled AR-15 Pistol Upper – .223/5.56 11.5″ Ballistic Advantage Barrel – No BCG/CH
8 options
(25)
from $385.49
In stock
AT3 Tactical 10.5 Inch 300 BLK Complete AR-15 Upper Assembly - No BCG or Charging Handle

AT3™ 10.5 Inch .300 Blackout Assembled Pistol Upper for AR-15 – No BCG/CH
8 options
(13)
from $402.49
In stock
20% offAT3 Tactical 10.5 Inch 9mm Complete AR-15 Upper Assembly - No BCG or Charging Handle copy

AT3™ 10.5 Inch Assembled PCC AR-15 Upper – 9mm 10.5 Inch Faxon Firearms Barrel – No BCG/CH
DAILY DEAL
8 options
(3)
$319.49from $255.59
In stock
10% offAT3™ FF-ML 10.5 Inch Complete Pistol Upper - Faxon Firearms 10.5 Inch .223/5.56 Barrel - 9" M-LOK Free Float Handguard

AT3™ 10.5 Inch Assembled AR-15 Pistol Upper – 10.5 Inch Faxon .223/5.56 SOCOM Barrel – No BCG/CH
24 options
(8)
$369.99from $365.39
In stock
AT3 Tactical 16 Inch 300 BLK Complete AR-15 Upper Assembly - No BCG or Charging Handle

AT3™ 16 Inch Assembled AR-15 PCC Upper – 9mm 16 Inch Faxon Firearms Barrel – No BCG/CH
8 options
(4)
from $341.49
In stock

AT3™ 16″ .22LR Complete Assembled Billet Upper with BCG and Charging Handle
8 options
from $508.99
In stock
10% offAT3 Tactical Complete .350 Legend AR-15 Upper Receiver - No BCG or CH - Black

AT3™ Assembled AR-15 Upper – .350 Legend Faxon Barrel – No BCG or CH
8 options
$434.49from $391.04
In stock
AT3™ FF-ML 16 Inch .300 BLK Complete Upper - .300 AAC Blackout 16 Inch Ballistic Advantage Barrel - 15" M-LOK Free Float Handguard

AT3™ 16 Inch .300 BLK Assembled AR-15 Upper – 16 Inch Ballistic Advantage Barrel – No BCG/CH
8 options
(7)
from $424.49
In stock
AT3™ 16″ .22LR Complete Assembled Forged Upper with BCG, Charging Handle, & Magazine - 8 Colors

AT3™ 16″ .22LR Complete Assembled Forged Upper with BCG, Charging Handle, & Magazine – 8 Colors
8 options
(1)
from $598.49
In stock
AT3™ 16″ .22LR Complete Assembled Forged Upper with BCG and Charging Handle - 8 Colors

AT3™ 16″ .22LR Complete Assembled Forged Upper with BCG and Charging Handle – 8 Colors
8 options
from $577.49
In stock
AT3™ 10.5 Inch Assembled PCC AR-15 Upper – 9mm 10.5 Inch Faxon Firearms Barrel – No BCG/CH - w/Sylvan Magazine Block

AT3™ 10.5 Inch Assembled PCC AR-15 Upper – 9mm 10.5 Inch Faxon Firearms Barrel – No BCG/CH – w/Sylvan Magazine Block – 8 Colors
8 options
from $420.49
In stock
AT3™ 16″ .22LR Complete Assembled Upper with BCG, Charging Handle, & Magazine - Black

AT3™ 16″ .22LR Complete Assembled Billet Upper with BCG, Charging Handle, & Magazine – 8 Colors
8 options
from $578.99
In stock
AT3™ 16 Inch Assembled AR-15 PCC Upper – 9mm 16 Inch Faxon Firearms Barrel – No BCG/CH - w/Sylvan Magazine Block

AT3™ 16 Inch Assembled AR-15 PCC Upper – 9mm 16 Inch Faxon Firearms Barrel – No BCG/CH – w/Sylvan Magazine Block – 8 Colors
8 options
from $441.49
In stock
10% offAT3 Tactical 16 Inch 5.56 NATO Lightweight Complete AR-15 Upper Assembly - No BCG or Charging Handle

AT3™ Assembled AR-15 Upper – .223/5.56 16″ Ballistic Advantage Barrel – No BCG/CH
16 options
(10)
$398.99from $381.59
Out of stock
AT3 Tactical .22LR Complete Upper Receiver with BCG and Charging Handle - 9 Inch - BLK

AT3™ 9″ .22LR Complete Assembled Pistol Billet Upper with BCG and Charging Handle
8 options
from $503.49
Out of stock
AT3™ FF-ML 11.5 Inch Complete Pistol Upper - .223/5.56 11.5 Inch Faxon Firearms Barrel - 12 Inch M-LOK Free Float Handguard

AT3™ 11.5 Inch Assembled AR-15 Pistol Upper – .223/5.56 11.5 Inch Faxon Firearms Barrel – No BCG/CH
8 options
(8)
from $409.49
Out of stock
AT3™ FF-ML 20 Inch 6.5 Grendel Complete Upper - 6.5 Grendel Type II 20 Inch Faxon Firearms Barrel - 15 Inch M-LOK Free Float Handguard

AT3™ 20 Inch 6.5 Grendel Assembled AR-15 Upper – 20 Inch Barrel by Faxon – No BCG/CH
8 options
(5)
from $597.49
Out of stock
Popular:
handguardmagpulbuffer tubebcgcharging handleforegrippmagslingstockbuffer

Sign in

Orders, tracking, Gun Bucks and saved addresses.

New to AT3? Create an account

Create an account

Track orders, earn Gun Bucks on every purchase, check out faster.

8+ characters with at least one letter and one number.

By creating an account you agree to the Terms of Use and Privacy Policy.

Already have an account? Sign in

Your cart