AT3 Tactical Optics and AR-15 Parts

High-Quality AR 15 Parts & Accessories by AT3 Tactical

Our signature line of parts & accessories – we keep the prices low by selling directly to the customer and avoiding distributor markups!

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AT3 Tactical ACE Red Dot - Red or Green 3 MOA Red Dot Optic for Handguns and Pistols

(5)

AT3 Tactical ACE Pistol 3 MOA Red Dot Sight – RMR Footprint – 2 Dot Colors

DAILY DEAL

AT3™ SPEAR XL AR-15 M-LOK Suppressor Ready Handguard

(52)

AT3™ SPEAR XL Suppressor Ready Free Float AR-15 Handguard – 12 & 15 Inch – M-LOK

Save 25%

Sale!

AT3 Spear M-LOK Handguard with Cerakote Finishes - 7 Colors

(719)

AT3™ SPEAR Free Float AR-15 Handguard – 9, 12, & 15 Inch – M-LOK

Sale!

(532)

AT3™ FU-BAG™ AR-15 Lost Parts Kit – Springs, Detents, Replacement Components

Sale!

AT3 Tactical AT-15 Lower Receiver - AR-15 Stripped Lower Receivers

(14)

AT3™ AT-15 Stripped Lower Receiver – Anodized and Cerakote

DAILY DEAL

AT3 ARO™ Micro Red Dot Reflex Sight with Optional Riser Mount

(203)

AT3 ARO™ 3 MOA Red Dot – Doctor/Venom/Fastfire Footprint – Optional Riser Mount

Save 25%

Sale!

AT3 Tactical Castle Nut for AR15

(102)

AT3™ Castle Nut for AR-15 Buffer Tubes – 9 Colors Available

RECOMMENDED

Sale!

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

RECOMMENDED

Sale!

AT3™ AR-15 Bolt Carrier Group - 5.56 NATO/.300 Blackout - Black Nitride

(193)

AT3™ AR-15 Bolt Carrier Group Black Nitride – .223/5.56 NATO .300 Blackout .350 Legend

Sale!

Black Warhammer with BCG

(54)

AT3™ Black Nitride 5.56 Bolt Carrier Group with Breek Arms Warhammer AR-15 Charging Handle

DAILY DEAL

AT3 Tactical Pro Quad Rail AR-15 Handguard with Cerakote Finishes

(304)

AT3™ Pro Quad Rail Free Float AR-15 Handguard – 7, 9, 12, & 15 Inch – Picatinny

Save 20%

Sale!

(1)

AT3™ AT-15 Lower and Upper Receiver Set – Anodized and Cerakote

RECOMMENDED

Sale!

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

Sale!

(158)

AT3™ 3x Magnified Red Dot Kit – Includes Red Dot, Riser, & 3x Magnifier

Sale!

(353)

AT3™ LEOS™ 2 MOA Red Dot Sight – Integrated Laser Sight & Riser

Sale!

AT3 Tactical RCO Red Dot Sight with Circle Dot Reticle and Riser Mounts

(53)

AT3™ RCO™ 2 MOA Red Dot Sight – Circle Dot Reticle – Variable Riser Mounts

Sale!

Armorer's Wrench for AR-15 & Multi-Function Tool by AT3™

(125)

Armorer’s Wrench for AR-15 Multi-Function Tool by AT3™

Sale!

With 0.83 Inch Riser Mount

(526)

AT3™ RD-50 PRO™ Micro 2 MOA Red Dot – Cantilever Riser Mount

Sale!

(41)

AT3™ MOTHERFU-BAG™ – The BIG AR-15 Lost Parts Kit – Springs, Detents, Wear Parts, and More

Sale!

AT3™ Mil-Spec AR-15 Pivot Pin/Takedown Pin Detent Springs - 2 Pcs

(42)

AT3™ Mil-Spec AR-15 Pivot Pin/Takedown Pin Detent Springs – Set of 2

Sale!

AT3™ AR-15 Gas Tube Roll Pins - Set of 2

(38)

AT3™ AR-15 Gas Tube Roll Pins – Set of 2

Sale!

"Rucksack" Compact 9mm 8.3" AR-9 Pistol - Team Dream Build

“Rucksack” Compact 9mm 8.3″ AR-9 Pistol – Team Dream Build

Sale!

"Hush" Suppressor-Ready 5.56 11.5" AR-15 - Team Dream Build

“Hush” Suppressor-Ready 5.56 11.5″ AR-15 – Team Dream Build

Sale!

"Striker" 5.56 NATO 16" AR-15 Carbine - Team Dream Build

“Striker” 5.56 NATO 16″ AR-15 Carbine – Team Dream Build