AR Bolt Carrier Groups
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Complete bolt carrier groups and bolts for AR-pattern rifles — phosphate, nitride, nickel boron, and chrome finishes, in mil-spec and low-mass designs. The BCG is the part under the most stress in the rifle, and the one where cutting cost shows up first.
Our bolt carrier group guide covers staking, bolt steel, testing claims worth believing, and which coatings actually matter.
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ANGSTADT AR15 BCG 45ACP BLK
$159.00 -
ANGSTADT AR15 BCG 556NATO BLK
$122.00 -
Angstadt Arms AA09BCGNIT Bolt Carrier Assembly Assembly 9mm Luger QPQ Black Nitride 8620 Steel AR-15
$159.00 -
BAD 9MM AR15 BOLT CARRIER GROUP BLK
$179.98 -
Battle Arms Development BAD-BCG-M16 223Rem/5.56NATO/300BO Black Nitride Steel AR15/M16/M4
$136.95 -
BLACK RAIN 223 BOLT CARRIER GRP LEFT
$202.00 -
BOOTLEG FOUR POS ADJ BOLT CAR COMPL
$205.00 -
CMC AR15 ENHANCED BCG MILSPEC – 5.56/.223 NITIRIDE FINISH
$159.99 -
CMC ENHANCED BCG 6MM ARC NTRD BLK
$199.99 -
CMC Triggers 81631 Bolt Carrier Group Enhanced 223 Rem,5.56x45mm NATO,300 Blackout Black Nitride 8620 Steel AR-15
$159.99 -
CMMG 22BA651 Bravo Compatible w/ 5.56/ .223 AR Platform Rifles 22 LR 25rd Includes 3 Magazines
$186.00 -
CMMG 22BA6AE Bravo Compatible w/ 5.56/ .223 AR Platform Rifles 22 LR 10rd Includes 3 Magazines
$186.00 -
CMMG 22LR AR CONV KIT 25RD
$206.00 -
CMMG AR CONVERSION KIT .22LR – 10-SHOT BRAVO
$169.00 -
CMMG AR CONVERSION KIT .22LR – BRAVO 3-10RD MAGAZINES FDE
$182.00 -
CMMG BARREL W/BOLT KIT 5.7X28M – M 8″ RDB BLACK
$416.00