New Arrivals at AT3: AR-15 Parts, Optics & Gear

We are consistently adding new products!
AT3 Tactical offers a wide range of top-rated AR 15 parts and tactical accessories. Build your ultimate AR-15 with our great selection of AR-15 scopes, AR-15 magazines, handguards & quad rails, best red dot sights, lower parts kit, iron sights, upper receiver, AR barrels, and more! We also carry AR-15 accessories from the READ MORE

Showing 1–24 of 388 results

List

Grid

Filter

Sort

LIST

Sale!

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

Springfield SAINT Victor V2 AR-15 Rifle – .223/5.56 – 14" Barrel – Pinned & Welded Flash Hider - 30 Round

Springfield SAINT Victor V2 AR-15 Rifle – .223/5.56 – 14″ Barrel – Pinned & Welded Flash Hider – 30 Round

Sale!

"Watchman" .223 Wylde 18" AR-15 DMR - Team Dream Build

“Watchman” .223 Wylde 18″ AR-15 DMR – Team Dream Build

Sale!

"Backseat" CQB .300 Blackout 7.5" AR-15 Pistol - Team Dream Build

“Backseat” CQB .300 Blackout 7.5″ AR-15 Pistol – Team Dream Build

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

Sale!

"Carlos" Compact AR-9 PCC Kit - Team Dream Build

“Carlos” Compact AR-9 PCC Kit – Team Dream Build

Sale!

"Perkins" Walnut .350 Legend AR-15 Kit - Team Dream Build

“Perkins” Walnut .350 Legend AR-15 Kit – Team Dream Build

Sale!

"Sunset" .300 Blackout Carbine Kit - Team Dream Build

“Sunset” .300 Blackout Carbine Kit – Team Dream Build

Sale!

AT3 Tactical Nano Red Dot - Title - 1200x1200

(1)

AT3 NANO 3 MOA Polymer Red Dot Sight – RMS/RMSc Footprint – Super Lightweight

DAILY DEAL

Strike Industries, FSA Dual Side Folding Stabilizing Brace - Fits 1913 Interfaces

Strike Industries, FSA Dual Side Folding Stabilizing Brace – Fits 1913 Interfaces

Save 10%

Sale!

AT3 Tactical Limited Edition Sticker Pack #5

AT3 Tactical Limited Edition Sticker Pack #5 – by Mark Collins

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

DAILY DEAL

Midwest Industries Picatinny Gas Block - .750 - 4141 Steel

Midwest Industries Gas Block – Picatinny Top – .750 – 4141 Steel

Save 15%

Sale!

STNGR HWK XL® Free Float Supressor Ready AR-15 Handguard – M-LOK – 2 Lengths Available

(3)

STNGR HWK XL® Free Float Suppressor Ready AR-15 Handguard – M-LOK – 2 Lengths Available

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%

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

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%

NEW

Allen Helix Low 8″-11″ Bipod – Picatinny Rail Mount

NEW

Allen Helix Low 8″-11″ Bipod – M-LOK Mount

NEW

Allen Helix Low 8″-11″ Bipod – Tilt Sling Stud Mount

DAILY DEAL

Rise Armament RAVE 140 3.5 Pound Single Stage Drop-In Trigger - Includes Anti-Walk Pins & Lower Parts Kit - No Grip - No Trigger Guard - Flat or Curved

Rise Armament RAVE 140 3.5 Pound Single Stage Drop-In Trigger – Includes Anti-Walk Pins & Lower Parts Kit – No Grip – No Trigger Guard – Flat or Curved

Save 15%

NEW

C&H Precision Optic Mounting Plate – For Dan Wesson DWX to RMR/SRO

We are consistently adding new products!

AT3 Tactical offers a wide range of top-rated AR 15 parts and tactical accessories. Build your ultimate AR-15 with our great selection of AR-15 scopes, AR-15 magazines, handguards & quad rails, best red dot sights, lower parts kit, iron sights, upper receiver, AR barrels, and more! We also carry AR-15 accessories from the top brands like Magpul, Aero & more!