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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Out of stock
FZ LIGHTWEIGHT BOLT CARRIER GROUP
FailZero
MSRP: $254.19$204.00This 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: $254.19$204.00 -
Out of stock
FZ BASIC SEMI KIT BOLT & HAMMER
FailZero
MSRP: $217.81$156.00This 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: $217.81$156.00 -
Out of stock
FZ EXO BOLT ASSEMBLY
FailZero
MSRP: $113.65$82.00This fully assembled and NiB coated (5.56/.223) bolt assembly is compatible with most mil spec AR15, M16, M4 Carriers. EXO Nickel Boron provides permanent dry lubricity; increased wear and corrosion resistance. By reducing friction this bolt assembly...MSRP: $113.65$82.00 -
Out of stock
FZ M16/M4 BOLT CARRIER GROUP
FailZero
MSRP: $217.81$156.00This 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: $217.81$156.00 -
Out of stock
FZ AR15 BOLT CARRIER GROUP
FailZero
MSRP: $179.93$129.00This 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: $179.93$129.00 -
Out of stock
FZ AR10 BCG NO HAMMER BLK
FailZero
MSRP: $304.40$244.00This AR10 Black Bolt Carrier Group (BCG) comes fully assembled and ready to drop into most Spec AR10 upper receivers. All critical parts are coated with EXO Nickel Boron Technology that provides permanent dry lubricity, extreme durability and increases...MSRP: $304.40$244.00 -
Out of stock
FZ 6.5GREN BCG NO HAMMER NIB
FailZero
MSRP: $217.81$156.00This 6.5 Grendel Bolt Carrier Group (BCG) comes fully assembled and ready to drop into most Mil-Spec upper receivers chambered in 6.5 Grendel (Type 2). All critical parts are coated with EXO Nickel Boron technology that provides permanent dry lubricity,...MSRP: $217.81$156.00 -
Out of stock
FZ AR10 BCG NO HAMMER NIB
FailZero
MSRP: $287.50$230.00This Bolt Carrier Group (BCG) comes fully assembled and ready to drop into most mil spec AR10 upper receivers. All critical parts are coated with EXO Nickel Boron technology that provides permanent dry lubricity, extreme durability and increases both...MSRP: $287.50$230.00 -
Out of stock
FZ EXO FIRING PIN
FailZero
MSRP: $18.78$12.00This EXO Nickel Boron coated firing pin provides a permanently lubricious surface for extreme durability and increased wear and corrosion resistance.MANUFACTURER: FailZeroMPN: EXO-FIRINGPIN01MODEL: 0Description: Firing PinType: Firing PinMSRP: $18.78$12.00 -
Out of stock
CMC ENHANCED BCG 6MM ARC NTRD BLK
CMC Triggers
MSRP: $250.74$180.00The CMC Triggers Suppressor Optimized Enhanced Bolt Carrier Group for the New Hornady 6mm ARC is designed for shooters who demand superior performance weapon components in the heart of their firearm. CMC Triggers manufactures the highest quality firearms...MSRP: $250.74$180.00 -
Out of stock
BOOTLEG FOUR POS ADJ BOLT CAR COMPL
Bootleg
MSRP: $279.93$205.00Complete Bolt carrier group, Machined from S7 Tool Steel, Lithium Isonite Coating, 4 Setting Adjustable Vent System relieves excess gas pressure created from suppressor use, creating longer dwell time and less blowback to the shooter. Gas Adjustment can...MSRP: $279.93$205.00 -
Out of stock
BOOTLEG 5.56 NITRIDE BCG COMPLETE
Bootleg
MSRP: $153.93$110.00Machined from 4140, Nitride Coating, MIL-SPEC configuration, Staked MIL-SPEC Gas Key, M16 Style.MANUFACTURER: BootlegMPN: BP-C15-BCGMODEL: 0Description: Bolt Carrier GroupType: Bolt Carrier GroupColor: BlackMSRP: $153.93$110.00