Final Hours to Save on Upgrades | Shop Now

Final Hours to Save on Upgrades | Shop Now

New AR-15 Upgrades, Gun Parts, and Complete Firearms

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!

4497 products

Magpul MOE-K2+ Pistol Grip - AR15/M4 - MAG532

Magpul MOE-K2+ Pistol Grip – AR-15/M4 – MAG532

4 options

(42)

Midwest Industries Combat T-Series Free Float Quad Rail for AR-15 - AT3 Tactical

Midwest Industries Combat T-Series Free Float Quad Rail AR-15 Handguard – Picatinny – 7 Lengths Available

7 options

(10)

B5 M-LOK Vertical Grip M-LOK - Multiple Colors

B5 Vertical Grip – M-LOK – 8 Colors Available

8 options

(13)

Timber Creek Outdoors Ambidextrous 45/90 AR-15 Safety Selector

8 options

(38)

UTG Pro Drop-in AR-15 Extended Quad Rail - Carbine Length - Picatinny

UTG Pro Drop-in AR-15 Extended Quad Rail – Carbine Length – Picatinny

(31)

KAK Industry DBC AR-15 Bolt Carrier Group - 5.56 NATO / .300 Blackout - Chrome-Lined Phosphate

KAK Industry DBC AR-15 Bolt Carrier Group – 5.56 NATO / .300 Blackout – Chrome-Lined Phosphate for FRTs

NEW

UTG Ultra Slim M-LOK Angled Foregrip

UTG Ultra Slim Angled Grip – M-LOK – Aluminum

(66)

AT3™ M-LOK Rail Section – 5 or 7 Slots – Made in USA

+118 options

(26)

VYPR M-Lok Free Float Handguard 15" - AR15/M4 (15VM) | Stngr USA

STNGR VYPR® Free Float AR-15 Handguard – M-LOK – 3 Colors & 4 Lengths Available

12 options

(6)

Duramag AR-15 Stainless Steel Magazine – .223/5.56/300BLK

Duramag .223/5.56/300BLK AR-15 Magazine – Stainless Steel – 20 Round

RECOMMENDED

(18)

UTG ACCU-SYNC AR-15 45 Degree Flip-Up Iron Sight Kit

(25)

Bear Creek Arsenal 5.56/.223 / .300 Blackout / .350 Legend AR-15 Bolt Carrier Group – Nitride

(11)

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

2 options

(2)

BRV-1082-B5-Systems-AR15-Stock-Black-600x600

B5 Systems Bravo AR-15 Stock – Mil-Spec

RECOMMENDED

8 options

(11)

Up to 20% off

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

AT3 Tactical AR-15 Cerakote Color Upgrade Kit

8 options

(14)

KAK Industry DBC K-SPEC AR-15 Bolt Carrier Group - 5.56 NATO / .300 Blackout - Side Vent - Dual Ejector - Chrome-Lined Phosphate

KAK Industry DBC K-SPEC AR-15 Bolt Carrier Group – 5.56 NATO / .300 Blackout – Side Vent – Dual Ejector – Chrome-Lined Phosphate for FRTs

NEW

AT3™ DELTA 3x Red Dot Magnifier with QD Flip-to-Side Mount

(15)

AT3™ AR-15 M-LOK Handstop - Black

AT3 Tactical Handstop – M-LOK – 9 Colors Available

+19 options

(37)

Breek Arms Sledgehammer Gas Busting AR-15 Charging Handle

Breek Arms Sledgehammer Gas Busting AR-15 Charging Handle

4 options

(9)

Adaptive Tactical LTG AR-15 Lightweight Tactical Pistol Grip

2 options

(39)

AT3™ Mil-Spec AR-15 Magazine Catch – 9 Colors Available

+19 options

(15)

Geissele Super 42 Braided Wire Buffer & Spring Combo, H2

Geissele Super 42 Braided Wire Buffer & Spring Combo, H2

(14)

Magpul M LOK Hand Stop Kit – MAG608

Magpul Hand Stop Kit – M-LOK – 4 Colors Available

4 options

(53)

AT3™ AR-15 Forward Assist

+19 options

(21)