5.56x45mm NATO Bolt Carrier Groups

One Horse M16 Bolt Carrier Group 5.56/.300 Nickel Boron

Black Rain Ordnance Spec15 Bolt & Carrier Group Black Nitride

Lantac Enhanced BCG Full Auto Style .224/5.56 Black Nitride

Lantac M-SPEC BCG .223/5.56mm NiB

TacFire AR-15 Complete Built Upper 5.56 NATO 16"

TacFire AR-15 Complete Upper 5.56 NATO 5" Barrel Black with Bolt Carrier Group

TacFire AR-15 5.56 NATO Bolt Carrier Group/MPI Tested, Nitride (Made in the USA)

Daniel Defense Complete Bolt Carrier Group 5.56mm Black

CMMG M16 Bolt Carrier Group Semi-Auto 5.56mm/.223/.300 BLK Black

Angstadt Arms AR-15 Bolt Carrier Assembly 5.56

AERO PRECISION 5.56 BCG w/ 9310 Bolt-Blk Nitride

LMT STANDARD FULL AUTO BOLT CARRIER GROUP, 5.56

AR15 BCG- 5.56/300 Blackout, Chrome Lined Phosphate

AR15 BCG 5.56/300 Blackout- Nickle Boron

K-SPEC Enhanced Left Hand AR15 BCG, 5.56/300 Blackout- Dual Ejector, Down Vent, Angled Slotted Carrier Rails

K-SPEC Enhanced AR15 BCG, 5.56/ 300 Blackout , Dual Ejector, Down Vent, Slotted Carrier Rails

K-SPEC Enhanced Left Hand AR15 Bolt - 5.56/ 300 Blackout, Dual Ejector, C158, Nitride

K-SPEC Enhanced AR15 Bolt- 5.56/300 Blackout, Dual Ejector, C158, Nitride

AR15 Bolt- 5.56/ 300 Blackout, C158, Nitride

BLEM AR15 Bolt- 5.56/ 300 Blackout, Nickel Boron

AR15 Bolt- 5.56/ 300 Blackout, Nickel Boron

BLEM AR15 Bolt- 5.56/ 300 Blackout, Chrome

K-SPEC Left Hand AR15 Bolt, 5.56/ 300 Blackout, Dual Ejector

K-SPEC Enhanced AR15 Bolt- 5.56/ 300 Blackout, Dual Ejector