AT3 Tactical

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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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KAK Shockwave Blade and Pistol Brace Kit
(12)

KAK Shockwave Blade AR-15 Pistol Brace Kit – Blade, Custom Pistol Buffer Tube, Buffer, & More
3 Options
from $89.99
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 $98.99
Out of Stock
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Sale!
AT3 Tactical AR-15 Cerakote Color Upgrade Kit - Flat Dark Earth
(14)

AT3 Tactical AR-15 Cerakote Color Upgrade Kit
8 Options
from $32.49
from $29.24
Out of Stock
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RECOMMENDED
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
Out of Stock
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(2)

AT3™ AT-15 Lower and Upper Receiver Set – Anodized and Cerakote
8 Options
from $189.99
Out of Stock
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RECOMMENDED
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
Out of Stock
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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
7 Options
from $111.99
Out of Stock
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NEW
AT3 AR-9 Barrel Builder Kit – 8.3″ 9mm Straight Profile Barrel & BCG

AT3 AR-9 Barrel Builder Kit – 8.3″ 9mm Straight Profile Barrel & BCG
$182.74
Only
$155.33
Out of Stock
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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 $168.29
Out of Stock
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AT3 AR-15 Billet Upper and M-LOK Handguard with Cerakote Finishes - 7 Colors
(163)

AT3™ AR-15 Upper Receiver and SPEAR Handguard Combo
24 Options
from $169.99
Out of Stock
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(17)

AT3™ Forged Upper Receiver and SPEAR Handguard Combo
21 Options
from $146.99
Out of Stock
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NEW
AT3 AR-15 Gas Management BCG & CH Kit - Radian Raptor SD / K-SPEC 5.56 Downward Vent BCG

AT3 AR-15 Gas Management BCG & CH Kit – Radian Raptor SD / K-SPEC 5.56 Downward Vent BCG
Only
$334.90
Out of Stock
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NEW
AT3 Tactical A1 Retro AR-15 Lower Build Kit

AT3 Tactical A1 Retro AR-15 Lower Build Kit
Only
$141.34
Out of Stock
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NEW
AT3 AR-15 Gas Management BCG & CH Kit - Breek Sledgehammer / K-SPEC 5.56 Downward Vent BCG

AT3 AR-15 Gas Management BCG & CH Kit – Breek Sledgehammer / K-SPEC 5.56 Downward Vent BCG
Only
$237.95
Out of Stock
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NEW
AT3 Barrel Builder Kit – 7.5″ .300 Blackout Medium Profile Pistol Length Barrel, Gas Block & Gas Tube

AT3 Barrel Builder Kit – 7.5″ .300 Blackout Medium Profile Pistol Length Barrel, Gas Block & Gas Tube
Only
$132.91
Out of Stock
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AT3 Tactical AR-15 Enhanced Cerakote Color Upgrade Kit - Flat Dark Earth
(9)

AT3 Tactical AR-15 Enhanced Cerakote Color Upgrade Kit
8 Options
from $67.99
Out of Stock
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NEW
AT3 AR-15 Gas Management Kit - Radian Raptor SD / K-SPEC 5.56 Downward Vent BCG / Wojtek Arkto Click Adjustable Gas Block

AT3 AR-15 Gas Management Kit – Radian Raptor SD / K-SPEC 5.56 Downward Vent BCG / Wojtek Arkto Click Adjustable Gas Block
4 Options
from $341.10
Out of Stock
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AT3™ Slick Side Upper Receiver and SPEAR XL Suppressor Ready Handguard Combo
(1)

AT3™ Slick Side Upper Receiver and SPEAR XL Suppressor Ready Handguard Combo
16 Options
from $229.99
Out of Stock
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NEW
AT3 Barrel Builder Kit – 16″ 5.56 NATO Government Profile Mid-Length Barrel, Gas Block & Gas Tube

AT3 Barrel Builder Kit – 16″ 5.56 NATO Government Profile Mid-Length Barrel, Gas Block & Gas Tube
Only
$150.22
Out of Stock
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NEW
AT3 Tactical AR-15 Lower Build Kit - Hogue Furniture

AT3 Tactical AR-15 Lower Build Kit – Hogue Furniture
Only
$233.99
Out of Stock
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NEW
AT3 Tactical Minimalist AR-15 Lower Build Kit

AT3 Tactical Minimalist AR-15 Lower Build Kit
Only
$180.93
Out of Stock
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NEW
AT3 Barrel Builder Kit – 16″ 5.56 NATO Government Profile Mid-Length Barrel, Gas Block, Gas Tube & BCG

AT3 Barrel Builder Kit – 16″ 5.56 NATO Government Profile Mid-Length Barrel, Gas Block, Gas Tube & BCG
Only
$219.61
Out of Stock
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NEW
AT3 Tactical AR-15 Lower Build Kit - Magpul MOE Carbine Furniture

AT3 Tactical AR-15 Lower Build Kit – Magpul MOE Carbine Furniture
Only
$160.46
Out of Stock
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NEW
AT3 Barrel Builder Kit – 7.5″ .300 Blackout Medium Profile Pistol Length Barrel, Gas Block, Gas Tube & BCG

AT3 Barrel Builder Kit – 7.5″ .300 Blackout Medium Profile Pistol Length Barrel, Gas Block, Gas Tube & BCG
Only
$202.61
Out of Stock
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