Big Fall Sale – Save up to 35% | Shop Now

Big Fall Sale – Save up to 35% | Shop Now

AT3 Tactical AR-15 Bolt Carrier Groups

Top-Tier Bolt Carrier Groups for AR-15

These BCG’s feature M16-style carriers, MPI/HPT inspected bolts, properly staked grade 8 gas key screws, and an unconditional lifetime warranty.

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(17)

AT3™ AR-15 Bolt Carrier Group Nickel Boron – .223/5.56 NATO .300 Blackout .350 Legend

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6.5 Grendel and 6mm ARC Bolt Carrier

(13)

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

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(1)

AT3™ .22LR Dedicated Stainless Steel AR-15 Bolt Carrier Group

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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

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(3)

AT3 Tactical™ 9mm Bolt Carrier Group – Nitride

RECOMMENDED

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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

Black Warhammer with BCG

(54)

AT3™ Black Nitride 5.56 Bolt Carrier Group with Breek Arms Warhammer AR-15 Charging Handle

Spare 5.56 Bolt in Black Nitride

(9)

AT3™ AR-15 Replacement Bolt – 5.56 NATO/.300 Blackout – Black Nitride

(3)

AT3™ Black Nitride 9mm Bolt Carrier Group with Breek Arms Warhammer AR-15 Charging Handle

Black Upper with BCG

(11)

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

Slick Side Upper with Ambi Charging Handle and Bolt Carrier Group

(2)

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

AT3™ Black Nitride 5.56 Bolt Carrier Group with AT3™ Standard GI AR-15 Charging Handle

(1)

AT3™ Black Nitride 5.56 Bolt Carrier Group with AT3™ Standard GI AR-15 Charging Handle

AT3™ Mil-Spec AR-15 Firing Pin

(12)

AT3™ Mil-Spec AR-15 Firing Pin

AT3™ Nickel Boron 5.56 Bolt Carrier Group with Armaspec Victory Ambi Charging Handle

(1)

AT3™ Nickel Boron 5.56 Bolt Carrier Group with Armaspec Victory Ambi Charging Handle

NEW

AT3 AR-15 Gas Management BCG & CH Kit - Radian Raptor SD / K-SPEC 5.56 Downward Vent BCG

AR-15 Gas Management BCG & CH Kit – Radian Raptor SD / K-SPEC 5.56 Downward Vent BCG

NEW

AT3 AR-15 Gas Management BCG & CH Kit - SilencerCo GDCH / K-SPEC 5.56 Downward Vent BCG

AR-15 Gas Management BCG & CH Kit – SilencerCo GDCH / K-SPEC 5.56 Downward Vent BCG

NEW

AT3 AR-15 Gas Management BCG & CH Kit - Breek Sledgehammer / K-SPEC 5.56 Downward Vent BCG

AR-15 Gas Management BCG & CH Kit – Breek Sledgehammer / K-SPEC 5.56 Downward Vent BCG

NEW

AT3 AR-15 Gas Management BCG & CH Kit - Strike Industries T-Bone / K-SPEC 5.56 Downward Vent BCG

AR-15 Gas Management BCG & CH Kit – Strike Industries T-Bone / K-SPEC 5.56 Downward Vent BCG

NEW

AT3 AR-15 Left Gas Management BCG & CH Kit - Breek Arms Sledgehammer OMNI-Buster / K-SPEC 5.56 Downward Vent BCG

AR-15 Left Gas Management BCG & CH Kit – Breek Arms Sledgehammer OMNI-Buster / K-SPEC 5.56 Downward Vent BCG

NEW

AT3 Tactical Bolt Carrier Group Parts Kit

AT3 Tactical Bolt Carrier Group Parts Kit

NEW

AT3 Tactical Bolt Carrier Group Refresh Parts Kit

AT3 Tactical Bolt Carrier Group Refresh Parts Kit

NEW

AT3 AR-15 Gas Management Kit - Radian Raptor SD / K-SPEC 5.56 Downward Vent BCG / Wojtek Arkto Click Adjustable Gas Block

AT3 AR-15 Gas Management Kit – Radian Raptor SD / K-SPEC 5.56 Downward Vent BCG / Wojtek Arkto Click Adjustable Gas Block

NEW

AT3 AR-15 Gas Management Kit - Breek Sledgehammer / K-SPEC 5.56 Downward Vent BCG / Wojtek Arkto Click Adjustable Gas Block

AT3 AR-15 Gas Management Kit – Breek Sledgehammer / K-SPEC 5.56 Downward Vent BCG / Wojtek Arkto Click Adjustable Gas Block