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

Build More, Save More | Get up to $220 Off! | 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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Black Warhammer with BCG

(54)

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

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

RECOMMENDED

(17)

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

NEW

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

AT3 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

AT3 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

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

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 BCG & CH Kit - Strike Industries T-Bone / K-SPEC 5.56 Downward Vent BCG

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

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

6.5 Grendel and 6mm ARC Bolt Carrier

(13)

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

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

(3)

AT3 Tactical™ 9mm Bolt Carrier Group – Nitride

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™ 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

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

(1)

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

DAILY DEAL

AT3 Tactical Bolt Carrier Group Parts Kit

AT3 Tactical Bolt Carrier Group Parts Kit

Last day!

Save 15%

DAILY DEAL

AT3 Tactical Bolt Carrier Group Refresh Parts Kit

AT3 Tactical Bolt Carrier Group Refresh Parts Kit

Last day!

Save 15%

NEW

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

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