AT3 Lower Build Kit with Magpul DT Stock and Grip - Flat Dark Earth

AT3 Tactical AR-15 Build Kits and Assemblies

Complete AR-15 upper receivers, lower build kits, and even complete rifle kits from AT3 Tactical are found here!  AT3 uses quality components that will make your new rifle even greater than the sum of its parts.

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AT3 Tactical AT-15 M-LOK Builder Set - Lower, Upper, and SPEAR M-LOK Handguard
(9)

AT3™ AT-15 M-LOK Builder Set – Anodized and Cerakote
25 Options
from $260.99
from $221.84
Out of Stock
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Sale!
(1)

AT3™ AT-15 Lower and Upper Receiver Set – Anodized and Cerakote
8 Options
from $189.99
from $161.49
Out of Stock
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RECOMMENDED
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AT3 Tactical AT-15 Quad Rail Builder Set - Lower, Upper, and Pro Quad Rail Handguard
(6)

AT3™ AT-15 Quad Rail Builder Set – Anodized and Cerakote
32 Options
from $264.99
from $225.24
Out of Stock
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"Striker" 5.56 NATO 16" AR-15 Carbine - Team Dream Build

“Striker” 5.56 NATO 16″ AR-15 Carbine – Team Dream Build
$1,699.50
Only
$1,444.58
Out of Stock
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"Watchman" .223 Wylde 18" AR-15 DMR - Team Dream Build

“Watchman” .223 Wylde 18″ AR-15 DMR – Team Dream Build
$2,611.13
Only
$2,219.46
Out of Stock
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"Backseat" CQB .300 Blackout 7.5" AR-15 Pistol - Team Dream Build

“Backseat” CQB .300 Blackout 7.5″ AR-15 Pistol – Team Dream Build
$1,714.46
Only
$1,457.29
Out of Stock
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"Rucksack" Compact 9mm 8.3" AR-9 Pistol - Team Dream Build

“Rucksack” Compact 9mm 8.3″ AR-9 Pistol – Team Dream Build
$1,910.80
Only
$1,624.18
Out of Stock
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"Hush" Suppressor-Ready 5.56 11.5" AR-15 - Team Dream Build

“Hush” Suppressor-Ready 5.56 11.5″ AR-15 – Team Dream Build
$2,557.03
Only
$2,173.48
Out of Stock
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"Sunset" .300 Blackout Carbine Kit - Team Dream Build

“Sunset” .300 Blackout Carbine Kit – Team Dream Build
$1,491.73
Only
$1,267.97
Out of Stock
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"Carlos" Compact AR-9 PCC Kit - Team Dream Build

“Carlos” Compact AR-9 PCC Kit – Team Dream Build
$1,617.87
Only
$1,375.19
Out of Stock
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Sale!
"Perkins" Walnut .350 Legend AR-15 Kit - Team Dream Build

“Perkins” Walnut .350 Legend AR-15 Kit – Team Dream Build
$2,489.33
Only
$2,115.93
Out of Stock
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Sale!
1000 Yard 6 ARC Gas Gun Dream Build Kit - June Giveaway

1000 Yard 6 ARC Gas Gun Kit – June Dream Build
$3,701.43
Only
$3,146.22
Out of Stock
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Sale!
A1 Retro AR15 Clone with A3 Modern Sporting Rifle - Luth AR AT3 Tactical

Luth-AR Retro Meets Modern Memorial A1 and A3 AR-15 Dream Builds
$2,249.00
Only
$1,911.65
Out of Stock
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Sale!
AT3 Pro-Builder AR-15 Lower Build Kit
(1)

AT3™ Pro-Builder™ Black AR-15 Lower Build Kit
$69.98
Only
$59.48
Out of Stock
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Sale!
October Freedom Fighter Title V2 - 1200x1200

Freedom Fighter ODG/FDE Complete 5.56 Rifle Build Kit – October Dream Build
$2,406.26
Only
$2,045.32
Out of Stock
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Sale!
April Dream Gun - FN 509 Ultimate Duty Carry Pistol Kit

Ultimate FN 509 9mm Duty Carry Package – April Dream Build
$1,234.33
Only
$1,049.18
Out of Stock
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Sale!
AT3™ 22LR 4.5" Barrel Kit - 4.5" Tapered 22LR Barrel - Dedicated 22LR BCG - 25rd Black Dog 22LR Magazine

AT3™ 22LR 4.5″ Barrel Kit – 4.5″ Tapered 22LR Barrel – Dedicated 22LR BCG – 25rd Black Dog 22LR Magazine
$272.99
Only
$232.04
Out of Stock
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DAILY DEAL
AT3™ 22LR 16″ Assembled Upper – 2A Basics ASAL 15" Handguard – with BCG/Charging Handle

AT3™ 22LR 16″ Assembled Upper – 2A Basics ASAL 15″ Handguard – with BCG/Charging Handle

Save 15%

$523.99
Only
$445.39
Out of Stock
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Sale!
AT3™ 22LR 16" Barrel Kit - 16" Pencil 22LR Barrel - Dedicated 22LR BCG - 25rd Black Dog 22LR Magazine

AT3™ 22LR 16″ Barrel Kit – 16″ Pencil 22LR Barrel – Dedicated 22LR BCG – 25rd Black Dog 22LR Magazine
$335.99
Only
$285.59
Out of Stock
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Sale!
AT3 Tactical March 2026 Giveaway Gun - 3-Gun Rifle Kit

3-Gun Rifle Complete Build Kit – March Dream Build
$1,973.21
Only
$1,677.23
Out of Stock
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DAILY DEAL
AT3™ 22LR 16″ Assembled Upper – 2A Basics ASAL 15" Handguard – with BCG/Charging Handle/Magazine

AT3™ 22LR 16″ Assembled Upper – 2A Basics ASAL 15″ Handguard – with BCG/Charging Handle/Magazine

Save 15%

$544.99
Only
$463.24
Out of Stock
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Sale!
AT3 AR-15 Billet Upper and M-LOK Handguard with Cerakote Finishes - 7 Colors
(160)

AT3™ AR-15 Upper Receiver and SPEAR Handguard Combo
24 Options
from $169.99
from $144.49
Out of Stock
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Sale!
AT3 Tactical AR-15 Ultimate Cerakote Color Upgrade Kit - Flat Dark Earth
(10)

AT3 Tactical AR-15 Ultimate Cerakote Color Upgrade Kit
8 Options
from $109.99
from $93.49
Out of Stock
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Sale!
AT3 Tactical Spear with Magpul MOE Free-Float Furniture Kit
(84)

AT3 SPEAR Furniture Kit – AT3 AR-15 M-LOK Handguard, Magpul MOE Stock & Grip
24 Options
from $150.99
from $128.34
Out of Stock
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