Build More, Save More | Get up to $220 Off! | Shop Now

Build More, Save More | Get up to $220 Off! | Shop Now

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

(56)

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

Save 30%

Sale!

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

(307)

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

Sale!

AT3 Flatline AR-15 Rifle

(1)

AT3™ AT-15 FLATLINE Rifle 16 Inch 5.56 NATO – 15 Inch M-LOK Handguard

Sale!

(56)

AT3™ Red Tail™ Second Focal Plane 30mm Scope – MOA – Locking Caps – 5.56 Illuminated BDC Reticle – 1-4×24 or 1-6×24

Sale!

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

(17)

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

Sale!

(1)

AT3 Tactical AR-15 Barrel – 16″ – 5.56 NATO – Government Profile – Mid-length

Sale!

(12)

AT3™ Forged AR-15 Stripped Upper Receiver

Sale!

(1)

AT3 Tactical AR-15 Barrel – 16″ – .22LR – Pencil Profile – 1/2×28 Thread

KAK Shockwave Blade and Pistol Brace Kit

(12)

KAK Shockwave Blade AR-15 Pistol Brace Kit – Blade, Custom Pistol Buffer Tube, Buffer, & More

Sale!

AT3 Tactical AR-15 Ultimate Cerakote Color Upgrade Kit - Flat Dark Earth

(10)

AT3 Tactical AR-15 Ultimate Cerakote Color Upgrade Kit

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AT3 Tactical Beanie

Sale!

AT3 Tactical AR-15 Cerakote Color Upgrade Kit - Flat Dark Earth

(14)

AT3 Tactical AR-15 Cerakote Color Upgrade Kit

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Choose from 2 Designs and 2 Colors for M-LOK Rail Covers

(40)

AT3 M-LOK Rail Covers – Retro & Old Glory Design – 2 Colors Available

(541)

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

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

(725)

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

AT3 Tactical Castle Nut for AR15

(102)

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

(76)

AT3™ ALPHA Micro 2 MOA Red Dot Sight – Shake Awake – Cantilever Riser Mount

Black Warhammer with BCG

(54)

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

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

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

(204)

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

(2)

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

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

RECOMMENDED

(124)

AT3™ Pro-Builder™ AR-15 Lower Parts Kit – No Grip or Trigger Assembly

RECOMMENDED

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

(195)

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