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

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

.223/5.56

Great Deals on .223/5.56mm AR Parts
Enjoy great savings when you buy high-quality .223/5.56mm AR 15 parts from AT3 Tactical
We offer a variety of products for the .223/5.56mm AR variants.
Whether you need to upgrade your .223/5.56 AR 15 by getting AR 15 Handguards, AR 15 Barrels, Magazines, or Muzzle Devices, we’ve got READ MORE

Showing 1–24 of 573 results

List

Grid

Filter

LIST

Sale!

AT3 Flatline AR-15 Rifle

(1)

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

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!

(1)

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

Sale!

Lancer Advanced Warfighter Gen 2 30 Round AR-15 Magazine

(4)

Lancer L5AWM GEN 2 Advanced Warfighter .223/5.56 NATO AR-15 Magazine – 30 Round

Sale!

Strike Industries 10 Round Strike Mag for AR15 - .223/5.56 - AT3 Tactical

(1)

Strike Industries 10 Round Strike Mag for AR-15 – .223/5.56

Sale!

Strike Industries Enhanced AR15 Lower Parts Kit - AT3 Tactical

Strike Industries Enhanced AR-15 Lower Parts Kit

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

(725)

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

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

Hexmag Series 2 5.56 30rd Magazine

(68)

Hexmag Series 2 .223/5.56 NATO AR-15 Magazine – 30 Round

(12)

Hexmag Shorty Compliant .223/5.56 NATO AR-15 Magazine – 10 Round

(157)

Armaspec Stealth Recoil Spring (SRS) for AR-15 and AR-10

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

(9)

Hexmag Shorty .223/5.56 NATO AR-15 Magazine – 20 Round

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

NEW

AT3 Barrel Builder Kit – 10.5″ 5.56 NATO Government Profile Carbine Length Barrel, Gas Block & Gas Tube

DAILY DEAL

LBE Unlimited Retro AR-15 3 Prong Flash Hider - AT3 Tactical

(10)

LBE Unlimited Retro AR-15 3 Prong Flash Hider – 1/2×28 – 5.56 NATO – Crush Washer Included

Save 20%

DAILY DEAL

(2)

Maglula Mag Loader Range Benchloader – .223/5.56 NATO – 30rd Loader

Save 10%

Faxon Firearms Match Series – 14.5 inch Pencil Barrel – .223 Wylde – 5R – 416R – Nitride – Nickel Teflon Extension

Faxon Firearms Match Series AR-15 Barrel – 14.5″ – .223 Wylde – Pencil Profile – Mid-Length

DAILY DEAL

Odin Works AR-15 223 Wylde Barrel 16.1" Mid Length

Odin Works AR-15 Barrel – 16.1″ – .223 Wylde – Medium Profile – Mid-Length

Save 20%

DAILY DEAL

AT3™ Mil Spec Buffer Tube Kit For AR-15

(93)

AT3™ Mil Spec Buffer Tube Kit For AR-15 – 9 Colors Available

Save 15%

AT3 AR-15 Billet Upper and M-LOK Handguard with Cerakote Finishes - 7 Colors

(162)

AT3™ AR-15 Upper Receiver and SPEAR Handguard Combo

(23)

Magpul Cerakote PMAG AR-15 Magazine – 30 Round – FDE, ODG, and Pink Coated by AT3

MI SP (Suppressor Compatible) AR-15 Free Float Handguard - M-LOK

(19)

Midwest Industries SP Suppressor Ready Free Float AR-15 Handguard – M-LOK – 5 Lengths Available

Great Deals on .223/5.56mm AR Parts
Enjoy great savings when you buy high-quality .223/5.56mm AR 15 parts from AT3 Tactical
We offer a variety of products for the .223/5.56mm AR variants.
Whether you need to upgrade your .223/5.56 AR 15 by getting AR 15 Handguards, AR 15 Barrels, Magazines, or Muzzle Devices, we’ve got you covered.
All of the products on this page are made for the .223/5.56mm AR variants. If you have any questions about the fit of a part to your specific weapon, please contact us and we are glad to help.