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TIRED OF GETTING A FACEFUL OF BLOWBACK?

KAK K-Spec Down Vent BCG Vents Gasses Away From
The Shooter Perfect For Overgassed & Suppressed Guns

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No - They're Not Another
Run-Of-The-Mill BCG

See What Sets The Brownells BCG Apart!
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BROWNELLS BRN-180® GEN3

You've Been Waiting - Don't Miss Out Again!
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Looking For The Most Impactful AR Upgrade?

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Rifle Bolts & Bolt Carrier Groups

71 Items

Rifle Bolts & Bolt Carrier Groups Up To 35% Off— 71 Products In Stock / 27 Models

Our Rifle Bolts & Bolt Carrier Groups lineup includes 71 in-stock products selected from the brands serious shooters and outdoorsmen rely on. Enjoy savings Up To 35% Off on qualifying orders, all protected by our Forever Guarantee®.

You'll find options across Bolt Carrier Groups, Rifle Bolts, & Bolt Carrier Parts from 41 premium brands like BROWNELLS, J P ENTERPRISES, KAK INDUSTRY LLC., FAXON FIREARMS, with detailed specs to help you compare quality, materials, and performance. Verified buyers give our Rifle Bolts & Bolt Carrier Groups 4.3 Ratings out of 730 Reviews from verified buyers, a strong signal you can shop with confidence.

Whether you are gearing up for the range, the field, or daily carry, we stand behind every Rifle Bolts & Bolt Carrier Groups product we ship. Visit our full Rifle Parts category for the complete selection of related gear.

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BROWNELLS - BRN-4® BOLT CARRIER GROUP PHOSPHATE & CHROME BROWNELLS - BRN-4® BOLT CARRIER GROUP PHOSPHATE & CHROME
5 Stars
(4.2)

$349.99

In stock
BROWNELLS - BRN-22® BOLT ASSEMBLY BROWNELLS - BRN-22® BOLT ASSEMBLY
5 Stars
(4.8)

$99.10 - $139.99

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BRAVO COMPANY - M16 5.56 BOLT CARRIER GROUP BRAVO COMPANY - M16 5.56 BOLT CARRIER GROUP
5 Stars
(4.4)

$199.99 - $225.00

In stock
BROWNELLS - M16 MIL-SPEC MP BOLT CARRIER GROUP BROWNELLS - M16 MIL-SPEC MP BOLT CARRIER GROUP
5 Stars
(4.5)

$135.42

In stock
DANIEL DEFENSE - M16 5.56 BOLT CARRIER GROUP DANIEL DEFENSE - M16 5.56 BOLT CARRIER GROUP
5 Stars
(4.9)

$235.00

In stock
BROWNELLS - M16 5.56 BOLT ASSEMBLY NITRIDE MP BROWNELLS - M16 5.56 BOLT ASSEMBLY NITRIDE MP
5 Stars
(4.8)

$49.30

In stock
BROWNELLS - M16 5.56 BOLT CARRIER GROUP CHROME MP BROWNELLS - M16 5.56 BOLT CARRIER GROUP CHROME MP
5 Stars
(3.8)

$138.80 - $139.01

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J P ENTERPRISES - AR-15 6.5 GRENDEL/ 6MM ARC FULL MASS BOLT CARRIER GROUP J P ENTERPRISES - AR-15 6.5 GRENDEL/ 6MM ARC FULL MASS BOLT CARRIER GROUP
5 Stars
(0.0)

$375.25

In stock
BROWNELLS - AR-15 6.5 GRENDEL NITRIDE MP BROWNELLS - AR-15 6.5 GRENDEL NITRIDE MP
5 Stars
(4.9)

$49.80

In stock
RISE ARMAMENT - M16 BOLT CARRIER GROUP NICKEL BORON RISE ARMAMENT - M16 BOLT CARRIER GROUP NICKEL BORON
5 Stars
(5.0)

$179.99

In stock
J P ENTERPRISES - AR-15/M16 5.56 ENHANCED BOLT COMPLETION GROUP J P ENTERPRISES - AR-15/M16 5.56 ENHANCED BOLT COMPLETION GROUP
5 Stars
(5.0)

$126.99

In stock
BROWNELLS - M16 5.56 BOLT CARRIER GROUP NICKEL BORON MP BROWNELLS - M16 5.56 BOLT CARRIER GROUP NICKEL BORON MP
5 Stars
(3.4)

$145.53

In stock
LMT DEFENSE - SEMI-AUTO 7.62X51 NATO BOLT CARRIER GROUP LMT DEFENSE - SEMI-AUTO 7.62X51 NATO BOLT CARRIER GROUP
5 Stars
(0.0)

$575.10

In stock
LAW TACTICAL LLC - ARIC INTERNAL CARRIERS FOR AR-15 LAW TACTICAL LLC - ARIC INTERNAL CARRIERS FOR AR-15
5 Stars
(3.9)

$396.99 - $419.00

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J P ENTERPRISES - AR-15 6.5 GRENDEL / 6MM ARC COMPLETE BOLT ASSEMBLY ENHANCED J P ENTERPRISES - AR-15 6.5 GRENDEL / 6MM ARC COMPLETE BOLT ASSEMBLY ENHANCED
5 Stars
(5.0)

$155.75

In stock
J P ENTERPRISES - 308 AR ENHANCED HIGH PRESSURE BOLT COMPLETION GROUP J P ENTERPRISES - 308 AR ENHANCED HIGH PRESSURE BOLT COMPLETION GROUP
5 Stars
(5.0)

$217.95

In stock
FAXON FIREARMS - GEN-2 9MM BOLT CARRIER GROUP FOR GLOCK® & COLT® STYLE LOWER FAXON FIREARMS - GEN-2 9MM BOLT CARRIER GROUP FOR GLOCK® & COLT® STYLE LOWER
5 Stars
(4.8)

$199.99

In stock
KAK INDUSTRY LLC. - K-SPEC M16 5.56X45MM NATO BOLT CARRIER GROUP KAK INDUSTRY LLC. - K-SPEC M16 5.56X45MM NATO BOLT CARRIER GROUP
5 Stars
(4.0)

$179.99 - $219.99

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WILSON COMBAT - AR-15 BOLT CARRIER ASSEMBLY 5.56 NATO WILSON COMBAT - AR-15 BOLT CARRIER ASSEMBLY 5.56 NATO
5 Stars
(4.5)

$185.95 - $216.95

In stock
J P ENTERPRISES - AR.308 FULL MASS OPERATING SYSTEM COMPLETE CARRIER GROUP J P ENTERPRISES - AR.308 FULL MASS OPERATING SYSTEM COMPLETE CARRIER GROUP
5 Stars
(5.0)

$479.75

In stock
FAXON FIREARMS - GEN-2 308 WIN/6.5 CREEDMOOR/8.6BLK BOLT CARRIER GROUP FOR AR-308 FAXON FIREARMS - GEN-2 308 WIN/6.5 CREEDMOOR/8.6BLK BOLT CARRIER GROUP FOR AR-308
5 Stars
(1.0)

$201.48

In stock
J P ENTERPRISES - 308 AR LOW MASS BOLT CARRIERS J P ENTERPRISES - 308 AR LOW MASS BOLT CARRIERS
5 Stars
(5.0)

$280.25

In stock
FAXON FIREARMS - RIMFIRE BOLT ASSEMBLY FOR RUGER 10/22® FAXON FIREARMS - RIMFIRE BOLT ASSEMBLY FOR RUGER 10/22®
5 Stars
(4.8)

$124.20

In stock
FAXON FIREARMS - 6.5 GRENDEL/6MM ARC TYPE 2 BOLT CARRIER GROUP FOR AR-15/M16 FAXON FIREARMS - 6.5 GRENDEL/6MM ARC TYPE 2 BOLT CARRIER GROUP FOR AR-15/M16
5 Stars
(3.6)

$151.80

In stock
BROWNELLS - AR-15 BOLT CARRIER GAS KEY BROWNELLS - AR-15 BOLT CARRIER GAS KEY
5 Stars
(4.8)

$28.99

In stock
LMT DEFENSE - AR-15 BOLT CARRIER GROUP LMT DEFENSE - AR-15 BOLT CARRIER GROUP
5 Stars
(0.0)

$249.75 - $304.20

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KAK INDUSTRY LLC. - K-SPEC M16 5.56 NATO BOLT CARRIER GROUP W/SIDE VENT KAK INDUSTRY LLC. - K-SPEC M16 5.56 NATO BOLT CARRIER GROUP W/SIDE VENT
5 Stars
(4.0)

$179.99 - $219.99

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Product badge KNIGHT'S ARMAMENT - KNIGHTS ARMAMENT SR-15/SR-16 FIELD REPAIR KIT FOR 3.2 BOLT KNIGHT'S ARMAMENT - KNIGHTS ARMAMENT SR-15/SR-16 FIELD REPAIR KIT FOR 3.2 BOLT
5 Stars
(0.0)

$187.69

In stock
FAXON FIREARMS - 5.56X45MM NATO MIL-SPEC BOLT CARRIER GROUP FOR AR-15/M16 FAXON FIREARMS - 5.56X45MM NATO MIL-SPEC BOLT CARRIER GROUP FOR AR-15/M16
5 Stars
(3.0)

$133.40 - $183.08

In stock
J P ENTERPRISES - AR.308 BOLT CARRIER J P ENTERPRISES - AR.308 BOLT CARRIER
5 Stars
(5.0)

$280.25

In stock
BROWNELLS - M16 450 BUSHMASTER / 458 SOCOM BOLT CARRIER GROUP NITRIDE BROWNELLS - M16 450 BUSHMASTER / 458 SOCOM BOLT CARRIER GROUP NITRIDE
5 Stars
(3.8)

$106.14

In stock
J P ENTERPRISES - AR-15 FULL MASS BOLT CARRIER ASSEMBLY J P ENTERPRISES - AR-15 FULL MASS BOLT CARRIER ASSEMBLY
5 Stars
(5.0)

$232.75

In stock
Products:  1  –  32  of 130