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

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

6mm ARC AR-15 Parts by AT3 Tactical

AT3 Tactical provides high-quality, US-made components for precision rifles chambered in 6mm ARC. AT3 bolt carrier groups are compatible with 6.5 Grendel and 6mm ARC.

Showing all 5 results

List

Grid

Filter

Sort

LIST

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

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

6.5 Grendel and 6mm ARC Bolt Carrier

(13)

AT3™ AR-15 Nickel Boron Bolt Carrier Group – 6.5 Grendel/6mm ARC

AT3 Tactical 3-Port Muzzle Brake

(25)

AT3™ AR-15 3-Port Muzzle Brake – 5/8×24 – .300 BLK/.308 Win – Crush Washer Included

AT3™ AR-15 Bolt Carrier Group - 6.5 Grendel Type II - Black Nitride

(4)

AT3™ AR-15 Bolt Carrier Group – 6.5 Grendel/6mm ARC – Black Nitride