5.56x45mm NATO Bolt Carrier Groups

Microbest C158 HPT/MPI 5.56 Bolt Carrier Group - Chrome

Microbest Mil-Spec C158 HPT/MPI 5.56 Bolt Carrier Group - Phosphate/Chrome-Lined

APOC Armory Nickel Boron Bolt Carrier Group 5.56/.223

WBP AKM Bolt Carrier 5.56 w/ KNS Adjustable Gas Piston

WBP 5.56 AKM Bolt Carrier w/Piston - Black

FB Radom Beryl 5.56x45mm Bolt Extractor

Sons of Liberty Gun Works Scalper 5.56/.223 Bolt Carrier Group

APOC Armory Black Nitride Bolt Carrier Group 5.56/.223

WMD Guns Nickel Boron .223 Remington/556NATO Bolt Assembly

Anderson Nickel Boron AR 15 Bolt Carrier Group

Battle Arms Titanium M16 BCG With ArmorTi Coating AR15

Battle Arms M16 .223/5.56 Bolt Carrier Group - Nitride

.223/5.56 Bolt Carrier Group - Blue PVD

.223/5.56 Bolt Carrier Group - Chameleon

LMT Defense AR-15 Full-Auto 5.56mm Carrier w/ Enhanced Bolt w/ Ambidextrous Charging Handle

LMT Defense 5.56 Full-Auto Bolt Carrier Group + Ambidextrous Charging Handle Combo - BCG & Charging Handle Upgrade Kit

BattleHawk Armory Complete AR-15 5.56/300 Black Nitride Logoed Bolt Carrier Group With AR-15 WarHammer Mod2 Black Micro Lever Ambi Black Charging Handle

BattleHawk Armory Complete AR-15 5.56/300 Black Nitride Logoed Bolt Carrier Group w/ Ambi Large Lever Charging Handle

BattleHawk Armory Complete M16 AR-15 5.56/300 FDE PVD Logoed Bolt Carrier Group With AR-15 WarHammer Mod2 FDE Large Lever Ambi Black Charging Handle

FB Beryl 5.56x45mm Bolt Carrier

One Horse M16 .223/5.56 Bolt Carrier Group - Black Nitride

BCA M16 Cut 5.56/.223 Right Side Charging Complete BCG - Black Nitride

Obsidian Arms M16 Bolt Carrier Group Phosphate 5.56

Evolve Weapons Systems Bolt Carrier Group - Phosphate