Up to 20% Off AR-15 Uppers & Accessories | Shop Now

Up to 20% Off AR-15 Uppers & Accessories | Shop Now

OD Green.223 and 5.56 AR-15 Parts

Need OD Green .223/5.56 AR Parts? AT3 has you covered – with fast & free shipping, hassle-free returns, and friendly customer service.

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Sale!

AT3 Complete .223 Wylde Match Grade Upper Faxon Heavy Fluted Barrel

(4)

AT3™ Assembled Match Grade AR-15 Upper – .223 Wylde 16 Inch Faxon Firearms Barrel – No BCG/CH

RECOMMENDED

Sale!

STNGR Complete AR-15 Upper Receiver with 16 Inch Barrel, BCG and Charging Handle - VYPR Handguard, OD Green

STNGR 16″ .223 Wylde Complete Assembled Upper Receiver w/ 15″ VYPR® Handguard, BCG & CH

Sale!

AT3 Tactical 16 Inch 5.56 NATO Lightweight Complete AR-15 Upper Assembly - No BCG or Charging Handle

(10)

AT3™ Assembled AR-15 Upper – .223/5.56 16″ Ballistic Advantage Barrel – No BCG/CH

RECOMMENDED

Sale!

STNGR Complete AR-15 Upper Receiver with 16 Inch Barrel, BCG and Charging Handle - RPTR Handguard, OD Green

(1)

STNGR 16″ .223 Wylde Complete Assembled Upper Receiver w/ 15″ RPTR® Handguard, BCG & CH

Sale!

AT3™ Upper Receiver and Pro Quad Rail Handguard Combo - OD Green

(19)

AT3™ AR-15 Upper Receiver and Pro Quad Rail Handguard Combo

Sale!

AT3 Tactical SPEAR M-LOK Handguard - 9 Inch OD Green

(726)

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

Sale!

(164)

AT3™ AR-15 Upper Receiver and SPEAR Handguard Combo

Sale!

AT3™ Pro Quad Rails - Free Float AR15 Handguards - OD Green

(308)

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

Sale!

Magpul MOE M-LOK Carbine Length Handguard for AR-15 - MAG424 - ODG

(85)

Magpul MOE Drop-In AR-15 Handguard – Carbine Length – M-LOK – MAG424

RECOMMENDED

(9)

AT3™ AT-15 M-LOK Builder Set – Anodized and Cerakote

(12)

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

RECOMMENDED

AT3 Tactical AT-15 Quad Rail Builder Set - Upper, Lower, and Handguard - 15 Inch - OD Green

(6)

AT3™ AT-15 Quad Rail Builder Set – Anodized and Cerakote

(9)

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

(93)

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

(23)

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

(34)

Duramag Speed .223/5.56 NATO AR-15 Magazine – Aluminum – 30 Round – Black Follower

Black Upper with BCG

(11)

AT3™ Slick Side AR-15 Upper with Black Nitride 5.56 Bolt Carrier Group

AT3 Tactical Slick Side Upper with BCG and Breek Warhammer - OD Green - Black Nitride

(2)

AT3™ Slick Side Upper with Bolt Carrier Group and Breek Arms Warhammer Charging Handle

AT3 Tactical Rifle Kit with Lightweight Ballistic Advantage Barrel OD Green

(7)

AT3 Tactical 16″ 5.56 NATO Pencil Barrel AR-15 JNL Ready Build Kit – M-LOK / Magpul CTR

Magpul PMAG M3 .223/5.56 NATO AR-15 Magazine - 30 Round - OD Green

Magpul PMAG M3 .223/5.56 NATO AR-15 Magazine – 30 Round – OD Green

(25)

AT3™ 11.5″ Assembled AR-15 Pistol Upper – .223/5.56 11.5″ Ballistic Advantage Barrel – No BCG/CH

STNGR Complete AR-15 Upper Receiver with 16 Inch Barrel, BCG and Charging Handle - HWK Handguard, OD Green

(2)

STNGR 16″ .223 Wylde Complete Assembled Upper Receiver w/ 15″ HWK® Handguard, BCG & CH

Duramag Speed AR-15 20 Round Aluminum Magazine - .223/5.56 NATO

(5)

Duramag Speed .223/5.56 NATO AR-15 Magazine – Aluminum – 20 Round

Magpul PMAG M3 w/Window .223/5.56 NATO AR-15 Magazine - 30 Round - OD Green

Magpul PMAG M3 w/Window .223/5.56 NATO AR-15 Magazine – 30 Round – OD Green