Home > Bolt Carrier Groups (BCGs) > 223 / 5.56 / 300 BLK
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Toolcraft Black Nitride Bolt Carrier Group - MPI Bolt Toolcraft Black Nitride Bolt Carrier Group - MPI Bolt
MSRP $139.95
SALE PRICE: $79.95
IN STOCK
(1)
Toolcraft Nickel Boron 158 Bolt Carrier Group - MPI Bolt Toolcraft Nickel Boron 158 Bolt Carrier Group - MPI Bolt
MSRP $149.95
SALE PRICE: $109.99
IN STOCK
Titanium AR-15 Firing Pin Titanium AR-15 Firing Pin
MSRP $27.99
SALE PRICE: $17.95
IN STOCK
Complete M16 Bolt Carrier Group - Black Nitride Complete M16 Bolt Carrier Group - Black Nitride
Our Price: $129.99
Deal of the day $69.99
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(34)
M16/AR15 Bolt - 9310 MPI (5.56) - Completion Kit - *Nickel Boron* M16/AR15 Bolt - 9310 MPI (5.56) - Completion Kit - (Nickel Boron) - Blem
Our Price: $67.95
Deal of the day $39.99
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(22)
Mil-Spec Phosphate Carrier w/ Gas Key RTB Mil-Spec Phosphate Carrier w/ Gas Key
MSRP $59.99
SALE PRICE: $45.00
IN STOCK
(6)
Toolcraft Phosphate 158 Bolt Carrier Group - MPI Bolt Toolcraft Phosphate 158 Bolt Carrier Group - MPI Bolt
MSRP $139.95
SALE PRICE: $79.95
IN STOCK
Toolcraft Nickel Boron Carrier Group - MPI Bolt Toolcraft Nickel Boron Bolt Carrier Group - MPI Bolt
MSRP $149.95
SALE PRICE: $109.99
IN STOCK
Spikes Tactical AR15 Complete Bolt Carrier Group - 5.56MM BCG Spikes Tactical Bolt Carrier Group HPT/MPI (5.56)
MSRP $149.95
SALE PRICE: $129.99
IN STOCK
(26)
Spikes tactical lightweight BCG Spike's Tactical Lightweight Nickel Boron BCG
MSRP $250.00
SALE PRICE: $209.99
IN STOCK
(28)
Battle Arms M16 Bolt Carrier Group BCG Battle Arms M16 Bolt Carrier Group BCG
MSRP $145.00
SALE PRICE: $135.00
FREE SHIPPING
IN STOCK
Rock River Arms chrome bolt carrier group Rock River Arms Complete Bolt Carrier Group (CHROME)
MSRP $175.00
SALE PRICE: $145.00
(Out of Stock)
(2)
Rock River Arms Bolt Carrier Group Rock River Arms Complete Bolt Carrier Group
MSRP $149.99
SALE PRICE: $115.00
(Out of Stock)
(2)
Mil-Spec Bolt Carrier Group - 158®  MPI  (5.56) RTB Mil-Spec Bolt Carrier Group - 158® MPI (5.56)
MSRP $139.99
SALE PRICE: $99.99
(Out of Stock)
(4)
RightToBear.com Nickel Boron 158 5.56 Bolt Carrier Group RTB Nickel Boron Bolt Carrier Group - 158® - MPI - M16 BCG (5.56)
MSRP $169.99
SALE PRICE: $129.99
(Out of Stock)
(38)
Anderson Manufacturing Complete M16 Bolt Carrier Group - Nitride Anderson Manufacturing Complete M16 Bolt Carrier Group - Nitride
MSRP $108.00
SALE PRICE: $79.99
(Out of Stock)
(5)
Nickel Boron Bolt Carrier Group - 9310 - MPI -  M16 BCG (5.56 RTB Nickel Boron Bolt Carrier Group - 9310 - MPI - M16 BCG (5.56)
MSRP $169.99
Deal of the day $109.99
(Out of Stock)
(22)
Phosphate Bolt Carrier Group 158 - MPI Phosphate Bolt Carrier Group 158 - MPI
MSRP $139.99
SALE PRICE: $75.00
(Out of Stock)
(14)
Faxon Complete Nitrided Lightweight Bolt Carrier Group FAXON GUNNER LIGHT WEIGHT BOLT CARRIER GROUP - COMPLETE - NITRIDE
MSRP $249.00
SALE PRICE: $236.55
FREE SHIPPING + 7% OFF SALE PRICE WHEN ADDED TO CART
(Out of Stock)
Faxon Firearms Complete Nitrided Bolt Carrier Group FAXON BOLT CARRIER GROUP - COMPLETE - NITRIDE
MSRP $145.00
SALE PRICE: $137.75
FREE SHIPPING + 7% OFF SALE PRICE WHEN ADDED TO CART
(Out of Stock)
   
 

5.56/.223 300 Blackout Bolt Carrier Group

Gas-operated firearms, including various assault rifles, require a bolt carrier group (BCG) to complete the cycle when a round is fired. A complete BCG pulls a round from the magazine and loads it into the chamber before locking back into place. A popular type is the 5.56 bolt carrier group, which also works as a 5.56 .223 bolt carrier group. However, some rifle owners do not understand that many 5.56/.223 BCGs can be used as a 300 BLK BCG.

All of the bolt carrier groups from Right to Bear Arms and Supply include special features that provide the best bang for your buck. Many of them use a Carpenter 158 bolt, but some have a 9310 bolt. Models from Spike's Tactical and others are high pressure tested – HPT – and magnetic particle inspected – MPI. In addition, the Fail Zero BCG uses a full auto carrier.