BCG
Gas & Brass Armory offers a trusted selection of AR-15 Bolt Carrier Groups (BCGs) for your rifle builds in Brandon, FL. Whether you're looking for a reliable mil-spec BCG or a premium enhanced model, we stock top brands like Aero Precision, BCM, FailZero, and Toolcraft. Choose from phosphate, nitride, or nickel boron finishes, with full-auto and lightweight options available. All BCGs are built to perform under pressure and keep your rifle cycling reliably.
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FZ 458 SOCOM BCG NO HAMMER NIB
FailZero
MSRP: $217.81$156.00This Bolt Carrier Group (BCG) comes fully assembled and ready to drop into most mil spec .458 SOCOM Upper Receivers. All critical parts are coated with EXO Nickel Boron technology that provides permanent dry lubricity, extreme durability, and increased...MSRP: $217.81$156.00 -
FZ M16/M4 BCG NO HAMMER BLK NIT
FailZero
MSRP: $149.63$107.00High quality components and precise manufacturing make FailZero parts ideal for maintaining and upgrading firearms. The durability, reliability and excellent build quality of these parts will ensure years of service you can count on.MANUFACTURER:...MSRP: $149.63$107.00 -
FZ AR15 BCG NO HAMMER BLK
FailZero
MSRP: $198.88$143.00This Bolt Carrier Group (BCG) comes fully assembled and ready to drop into most mil spec AR15 upper receivers. All critical parts are coated with EXO Nickel Boron technology that provides permanent dry lubricity, extreme durability and increases both...MSRP: $198.88$143.00 -
FZ M16 BOLT CARRIER GROUP
FailZero
MSRP: $179.93$129.00This Bolt Carrier Group (BCG) comes fully assembled and ready to drop into most mil spec M16, M4 or AR15 upper receivers. All critical parts are coated with EXO Nickel Boron technology that provides permanent dry lubricity, extreme durability and...MSRP: $179.93$129.00 -
CMMG BOLT CARRIER GROUP M16 556
CMMG
MSRP: $212.31$148.00Complete Mil Spec M16 bolt carrier group.MANUFACTURER: CMMGMPN: 55BA419MODEL: 0Type: Bolt Carrier GroupColor: BlackMSRP: $212.31$148.00 -
CMMG BCG AR15 6.5GRN/6MM ARC
CMMG
MSRP: $247.45$177.00This BCG is designed to operate with either 6.5 Grendel or Hornady's new 6mm ARC. Will not work with CMMG MkW platform. It is designed for standard AR variants.MANUFACTURER: CMMGMPN: 64BA44FMODEL: 0Description: Bolt Carrier GroupType: Bolt Carrier...MSRP: $247.45$177.00 -
CMC ENHANCED BCG AR15 NTRD MIL-SPEC
CMC Triggers
MSRP: $250.74$180.00High quality components and precise manufacturing make CMC parts ideal for maintaining and upgrading firearms. The durability, reliability and excellent build quality of these parts will ensure years of service you can count on.MANUFACTURER: CMC...MSRP: $250.74$180.00 -
BAD M4/M16 STANDARD BCG
Battle Arms Development
MSRP: $189.00$137.00The best just got better! From the inventors of the very first fully modular, patented, ambidextrous safety selector for the AR-15 platform, Battle Arms Development is raising the bar on reliability and compatibility of hard-use MSR components...MSRP: $189.00$137.00 -
ANGSTADT AR15 BCG 9MM BLK
Angstadt Arms
MSRP: $222.60$159.00This 9mm bolt carrier group is compatible with both GLOCK and Colt style 9mm AR-15 magazines without any further modifications. It features removable weight for use with the Law Tactical folding stock adapter.MANUFACTURER: Angstadt ArmsMPN:...MSRP: $222.60$159.00 -
ANGSTADT AR15 BCG 45ACP BLK
Angstadt Arms
MSRP: $222.60$159.00This 45 ACP bolt carrier group is compatible with GLOCK 45 ACP AR-15 (AR-45) builds. It features removable weight for use with the Law Tactical folding stock adapter.MANUFACTURER: Angstadt ArmsMPN: AA45BCGNITMODEL: 0Description: Bolt Carrier GroupType:...MSRP: $222.60$159.00 -
Out of stock
WLA M16 BCG BILLET EXTRCT 556 NCKL 810155160586
WHITE LABEL ARMORY
$162.00White Label Armory WLA-BCG-3003 M16 Bolt Carrier Group 5.56 NATO Nickel For AR15/M16M16M16NickelBolt Carrier Group$162.00 -
Out of stock
TACFIRE 45 AR PST GLK SW M&P 686294505300
TACFIRE
$116.00TACFIRE BCG45ACPG2 45 AR PST GLK SW M&PNitride$116.00