$0 Hazmat Fee Is Back! Stock Up On Powders & Primers

$0 Hazmat Fee Is Back! Stock Up On Powders & Primers

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Looking For The Most Impactful AR Upgrade?

JP SILENT CAPTURED SPRING

Upgrade Your AR
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NEVER COMPROMISE

Fold Your AR And
Don't Sacrifice Reliability
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4509 Site Banners - BRN180 Gen-3 Launch_Category Hero
4509 Site Banners - BRN180 Gen-3 Launch_Category Hero Mobile(1)

SEE WHAT YOU'VE
BEEN MISSING

Meet The BRN-180® Gen 3 Uppers
Introduce Me!
4230 Site Banners - Brownells BCG_Dekstop
4230 Site Banners - Brownells BCG_MobileV2

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

See What Sets The Brownells BCG Apart!
Learn More
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3771-KAK-K-Spec-BCGs-CP-Hero-768x450

TIRED OF GETTING A FACEFUL OF BLOWBACK?

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

Get Yours
JP-Silent-Capture-Spring-CP-Hero-1920x385
JP-Silent-Capture-Spring-CP-Hero-768x450

Looking For The Most Impactful AR Upgrade?

JP SILENT CAPTURED SPRING

Upgrade Your AR
3768-BOGO-Deals-CP-Hero-1920x385
3768-BOGO-Deals-CP-Hero-768x450

NEVER COMPROMISE

Fold Your AR And
Don't Sacrifice Reliability
Shop Now

Rifle Bolts & Bolt Carrier Groups

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Products:  –  of 134
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LAW TACTICAL LLC - AR-15 ARIC INTERNAL CARRIERS W/LAW FOLDER LAW TACTICAL LLC - AR-15 ARIC INTERNAL CARRIERS W/LAW FOLDER
5 Stars
(5.0)

$599.99

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
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
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
ANGSTADT ARMS, LLC - AR-15 9MM BOLT CARRIER GROUP ANGSTADT ARMS, LLC - AR-15 9MM BOLT CARRIER GROUP
5 Stars
(5.0)

$221.99

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
J P ENTERPRISES - 308 AR ENHANCED BOLT COMPLETION GROUP J P ENTERPRISES - 308 AR ENHANCED BOLT COMPLETION GROUP
5 Stars
(5.0)

$192.80

In stock
BROWNELLS BUNDLES - M16 BCG & MAGPUL AR-15 PMAG GEN M2 MOE MAGAZINE BUILDER'S BUNDLE BROWNELLS BUNDLES - M16 BCG & MAGPUL AR-15 PMAG GEN M2 MOE MAGAZINE BUILDER'S BUNDLE
5 Stars
(5.0)

$182.99

In stock
STERN DEFENSE, LLC - M16 9MM BOLT FOR GLOCK® AND COLT STERN DEFENSE, LLC - M16 9MM BOLT FOR GLOCK® AND COLT
5 Stars
(5.0)

$129.99 - $169.99

In stock
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
STERN DEFENSE, LLC - AR-15 9MM BOLT FOR GLOCK® AND COLT STERN DEFENSE, LLC - AR-15 9MM BOLT FOR GLOCK® AND COLT
5 Stars
(5.0)

$129.99

In stock
SONS OF LIBERTY GUN WORKS - 5.56X45MM NATO BOLT ASSEMBLY FOR AR-15 SONS OF LIBERTY GUN WORKS - 5.56X45MM NATO BOLT ASSEMBLY FOR AR-15
5 Stars
(5.0)

$104.49

In stock
BROWNELLS - AR15 BOLT CARRIER GROUP 5.56X45MM NITRIDE MP BROWNELLS - AR15 BOLT CARRIER GROUP 5.56X45MM NITRIDE MP
5 Stars
(5.0)

$99.99

In stock
Product badgeSTERN DEFENSE, LLC - AR-15 GEN 2 BOLT CARRIER FOR GLOCK® & COLT .40S&W STERN DEFENSE, LLC - AR-15 GEN 2 BOLT CARRIER FOR GLOCK® & COLT .40S&W
5 Stars
(5.0)

$93.82

$142.65

In stock
TIKKA - TIKKA T3 SPARE BOLT PARTS TIKKA - TIKKA T3 SPARE BOLT PARTS
5 Stars
(5.0)

$79.99

In stock
BROWNING - CARRIER GUIDE PIN BROWNING - CARRIER GUIDE PIN
5 Stars
(5.0)

$8.99

In stock
DANIEL DEFENSE - M16 5.56 BOLT CARRIER GROUP DANIEL DEFENSE - M16 5.56 BOLT CARRIER GROUP
5 Stars
(4.9)
Add to cart to see price

In stock
CMMG - AR-15 ECHO CONVERSION KIT 22LR CMMG - AR-15 ECHO CONVERSION KIT 22LR
5 Stars
(4.8)

$182.99

In stock
WMD GUNS - M16 5.56 NICKEL BORON BOLT CARRIER GROUPS WMD GUNS - M16 5.56 NICKEL BORON BOLT CARRIER GROUPS
5 Stars
(4.8)

$174.99 - $180.99

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

$94.99 - $134.99

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J P ENTERPRISES - AR-15/M16 5.56 ENHANCED BOLT ASSEMBLY J P ENTERPRISES - AR-15/M16 5.56 ENHANCED BOLT ASSEMBLY
5 Stars
(4.8)

$125.35

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

$46.99

In stock
BROWNELLS - M16 MIL-SPEC MP BOLT CARRIER GROUP BROWNELLS - M16 MIL-SPEC MP BOLT CARRIER GROUP
5 Stars
(4.7)

$129.99

In stock
BROWNELLS - M16 7.62X39 BOLT CARRIER GROUP NITRIDE MP BROWNELLS - M16 7.62X39 BOLT CARRIER GROUP NITRIDE MP
5 Stars
(4.7)

$114.99

In stock
BROWNELLS - AR-15 BOLT CARRIER GAS KEY BROWNELLS - AR-15 BOLT CARRIER GAS KEY
5 Stars
(4.7)

$28.99

In stock
BROWNELLS - M16 5.56 BOLT CARRIER GROUP NITRIDE MP BROWNELLS - M16 5.56 BOLT CARRIER GROUP NITRIDE MP
5 Stars
(4.6)

$98.99

In stock
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
(4.5)

$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

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BROWNELLS - M16 5.56 LIGHTWEIGHT BOLT CARRIER GROUP BROWNELLS - M16 5.56 LIGHTWEIGHT BOLT CARRIER GROUP
5 Stars
(4.4)

$134.99

In stock
BRAVO COMPANY - M16 5.56 BOLT CARRIER GROUP BRAVO COMPANY - M16 5.56 BOLT CARRIER GROUP
5 Stars
(4.3)

$199.99 - $225.00

In stock
BROWNELLS - 308AR BOLT CARRIER GROUPS BROWNELLS - 308AR BOLT CARRIER GROUPS
5 Stars
(4.3)

$159.99 - $169.99

In stock
Product badgeSMITH ENTERPRISE - M16 CHROME MATCH BOLT CARRIER ASSEMBLY SMITH ENTERPRISE - M16 CHROME MATCH BOLT CARRIER ASSEMBLY
5 Stars
(4.3)

$123.53

$209.99

In stock
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