Bolt Carrier Groups
The bolt carrier group is the heart of any AR10/AR15/M4/M16 type rifle, carbine or AR pistol. Bet-your-life dependability is a non-negotiable prerequisite. We carry Aero Precision, Toolcraft, Fail Zero and Spike's Tactical BCGs with Nickel Boron, Black Nitride, Ionbond DLC, Chrome/Magnesium Phosphate and Titanium Nitride-Gold finishes with M16 profile carriers. Chances are we have the AR BCG that you are looking for. See our Bolt Carrier Group Buyer's Guide.
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Aero Precision PRO Series Black Nitride BCG 556
Aero Precision Products
$180.00Free Shipping on all Aero Precision BCGs! Should you need an Aero Precision product we don't carry, we recommend going directly to the great folks at Aero Precision. The Aero Precision PRO 5.56 Bolt Carrier Group is built from the ground up to meet the...$180.00 -
On SaleBest Seller!See Best Price In Cart!
Toolcraft DLC Black BCG C158 556
Toolcraft
Now: $159.99Was: $209.99Free Shipping on all Toolcraft Bolt Carrier Groups! Shop other DLC colors: Toolcraft DLC FDE BCG, and Toolcraft DLC Gray BCG. The Ionbond Diamond Like Carbon (DLC) finish is an incredibly hard (90 Rockwell) self-lubricating finish...Now: $159.99Was: $209.99 -
Best Seller!See Best Price In Cart!
Toolcraft Black Nitride BCG 556
Toolcraft
$99.99 - $109.99Free Shipping on all Toolcraft Bolt Carrier Groups! Toolcraft Inc. is an OEM manufacturer of bolt carrier groups (BCGs) for many AR15 makers. These companies know they can trust Toolcraft quality and are proud to have their logos applied to...$99.99 - $109.99 -
Out of Stock
Fail Zero Nickel Boron BCG 556
FailZero
$169.99Free Shipping on all Fail Zero Bolt Carrier Groups! FailZero is the undisputed pioneer of Nickel Boron technology. When failure is not an option, you can depend on Fail Zero. This Fail Zero BCG is fully assembled and drop-in ready for most Mil-Spec...$169.99 -
On SaleSee Best Price In Cart!
Toolcraft DLC FDE C158 BCG 556
Toolcraft
Now: $179.99Was: $229.99Free Shipping on all Toolcraft Bolt Carrier Groups! Shop other DLC colors: Toolcraft DLC Black BCG and Toolcraft DLC Gray BCG. The Ionbond Diamond Like Carbon (DLC) finish is an incredibly hard (90 Rockwell) self-lubricating...Now: $179.99Was: $229.99 -
On SaleSee Best Price In Cart!
Toolcraft DLC Gray C158 BCG 556
Toolcraft
Now: $159.99Was: $209.99Free Shipping on all Toolcraft Bolt Carrier Groups! Shop other DLC colors: Toolcraft DLC Black BCG, and Toolcraft DLC FDE BCG. The Ionbond Diamond Like Carbon (DLC) finish is an incredibly hard (90 Rockwell) self-lubricating finish...Now: $159.99Was: $209.99 -
Out of Stock
Spike's Tactical M16 BCG 556
Spikes Tactical
$149.99Free Shipping on all Spike's Tactical BCGs! This is the same BCG Spike’s uses on their builds. These complete bolt carrier groups come magnetic particle inspected and high pressure tested. The carrier is made from 8620 steel and the bolt from 158...$149.99 -
Aero Precision Black Nitride BCG No Logo "Stealth" 556
Aero Precision Products
$155.00Free Shipping on all Aero Precision BCGs! Should you need an Aero Precision product we don't carry, we recommend going directly to the great folks at Aero Precision. Aero Precision is a leader in AR15 parts manufacturing and this Bolt Carrier Group is...$155.00 -
Best Seller!
Aero Precision Black Nitride BCG 556
Aero Precision Products
$155.00Free Shipping on all Aero Precision BCGs! Should you need an Aero Precision product we don't carry, we recommend going directly to the great folks at Aero Precision. Aero Precision is a leader in AR15 parts manufacturing and this Bolt Carrier Group is...$155.00 -
Out of Stock
Toolcraft Matte Chrome BCG 556
Toolcraft
$224.99Free Shipping on all Toolcraft Bolt Carrier Groups! See also our Polished Chrome BCG. We are extremely pleased to finally be able to offer a chrome bolt carrier group manufactured by Toolcraft! These BCGs exceeded all our expectations. The...$224.99 -
Out of Stock
Toolcraft Chrome BCG 556
Toolcraft
$224.99Free Shipping on all Toolcraft Bolt Carrier Groups! See also our Matte Chrome BCG. We are extremely pleased to finally be able to offer a chrome bolt carrier group manufactured by Toolcraft! These BCGs exceeded our expectations. The combination...$224.99 -
Aero Precision Nickel Boron BCG 556
Aero Precision Products
$190.00Free Shipping on all Aero Precision BCGs! Should you need an Aero Precision product we don't carry, we recommend going directly to the great folks at Aero Precision. Aero Precision is a leader in AR15 parts manufacturing and this Nickel Boron...$190.00 -
Out of Stock
Aero Precision Nickel Boron BCG No Logo "Stealth" 556
Aero Precision Products
$190.00Free Shipping on all Aero Precision BCGs! Should you need an Aero Precision product we don't carry, we recommend going directly to the great folks at Aero Precision. Aero Precision is a leader in AR15 parts manufacturing and this Nickel Boron Bolt...$190.00 -
On SaleSee Best Price In Cart!
Toolcraft DLC FDE BCG 308 - BLEM
Toolcraft
Now: $236.99Was: $299.99Free Shipping on all Toolcraft Bolt Carrier Groups! This BLEM item may contain minor scuffs, dings and rub marks from shipping. They are mechanically 100% and are covered by the Toolcraft Lifetime Warranty. This Toolcraft 308 DLC Bolt Carrier Group is...Now: $236.99Was: $299.99 -
Out of StockOn Sale
Toolcraft DLC BCG 9310 556
Toolcraft
Now: $159.99Was: $199.99Free Shipping on all Toolcraft Bolt Carrier Groups! The Ionbond Diamond Like Carbon (DLC) finish is an incredibly hard (90 Rockwell) self-lubricating finish. This makes it extremely resistant to wear and corrosion. This also makes it an...Now: $159.99Was: $199.99 -
Out of StockOn Sale
Toolcraft DLC BCG 6.5 Grendel
Toolcraft
Now: $169.99Was: $199.99Free Shipping on all Toolcraft Bolt Carrier Groups! Your 6.5 Grendel build deserves the best bolt carrier group! This 6.5 Grendel BCG by Toolcraft is the highest quality BCG on the market today. The Ionbond Diamond Like Carbon (DLC) finish is an...Now: $169.99Was: $199.99 -
Out of StockOn SaleSee Best Price In Cart!
Toolcraft Black Nitride BCG 6.5 Grendel
Toolcraft
Now: $114.99Was: $159.99Free Shipping on all Toolcraft Bolt Carrier Groups! Your 6.5 Grendel build deserves the best bolt carrier group money can buy. This 6.5 Grendel Type 2 BCG by Toolcraft is the highest quality BCG on the market today. Finished in Black Nitride for a...Now: $114.99Was: $159.99 -
Out of Stock
Radian Weapons Enhanced Bolt Carrier Group 556
Radian Weapons
$219.99Free Shipping on Radian Weapons BCGs! The Enhanced Bolt Carrier Group for AR15/M16 platform weapons was designed to minimize carrier tilt and reduce friction inside the upper receiver by relocating key bearing surfaces. All materials, tolerances, and...$219.99 -
Aero Precision Phosphate BCG 556
Aero Precision Products
$150.00Free Shipping on all Aero Precision BCGs! Should you need an Aero Precision product we don't carry, we recommend going directly to the great folks at Aero Precision. Aero Precision is a leader in AR15 parts manufacturing and this Bolt Carrier Group is...$150.00 -
Aero Precision Phosphate BCG No Logo "Stealth" 556
Aero Precision Products
$150.00Free Shipping on all Aero Precision BCGs! Should you need an Aero Precision product we don't carry, we recommend going directly to the great folks at Aero Precision. Aero Precision is a leader in AR15 parts manufacturing and this Bolt Carrier Group is...$150.00 -
Out of Stock
Toolcraft Phosphate C158 BCG 556
Toolcraft
$149.99Free Shipping on all Toolcraft Bolt Carrier Groups! Toolcraft makes some of the best AR15 bolt carrier groups on the market today. Precision manufactured on state-of-the-art CNC machinery in North Carolina, Toolcraft products are trusted by the U.S...$149.99 -
Out of StockBest Seller!
Toolcraft Nickel Boron BCG 556
Toolcraft
$179.99 - $189.99Free Shipping on all Toolcraft Bolt Carrier Groups! *Until This Product Is Back In Stock Consider Aero Precision Nickel Boron BCG* A Toolcraft Nickel Boron BCG is, hands down, one of the best Nickel Boron BCGs (NiB BCG) on the market today. The bolt...$179.99 - $189.99 -
Out of Stock
Toolcraft Titanium Nitride TiN C158 BCG 556
Toolcraft
$199.99Free Shipping on all Toolcraft Bolt Carrier Groups. Titanium Nitride (TiN) is an extremely hard ceramic material, often used in aerospace and military applications that improves maintenance, cleaning, and edge retention. This finish provides a...$199.99 -
On SaleSee Best Price In Cart!
Toolcraft Nickel Boron (C158) BCG Left Hand 556
Toolcraft
Now: $199.99Was: $224.99Toolcraft Left Handed Bolt Carrier Groups Ship FREE. Your Left-Handed AR15 Build deserves the best quality BCG you can get - Toolcraft! This quality Toolcraft bolt carrier group has all the outstanding specs of the right-handed Toolcraft BCG, but it's...Now: $199.99Was: $224.99 -
Out of Stock
Toolcraft Phosphate BCG 556
Toolcraft
$149.99Free Shipping on all Toolcraft Bolt Carrier Groups! Toolcraft makes some of the best AR15 bolt carrier groups on the market today. Precision manufactured on state-of-the-art CNC machinery in North Carolina, Toolcraft products are trusted by the U.S...$149.99 -
Out of Stock
Toolcraft Titanium Nitride TiN BCG 556
Toolcraft
$199.99Free Shipping on all Toolcraft Bolt Carrier Groups. Titanium Nitride (TiN) is an extremely hard ceramic material, often used in aerospace and military applications that improves maintenance, cleaning, and edge retention. This finish provides a...$199.99 -
Out of StockNew Product!
Toolcraft DLC Gray BCG 556
Toolcraft
$169.99Free Shipping on all Toolcraft Bolt Carrier Groups! Other DLC colors: Toolcraft DLC Black BCG, and Toolcraft DLC FDE BCG. The Ionbond Diamond Like Carbon (DLC) finish is an incredibly hard (90 Rockwell) self-lubricating finish. This...$169.99 -
Out of StockNew Product!
Toolcraft DLC FDE BCG 556
Toolcraft
$169.99Free Shipping on all Toolcraft Bolt Carrier Groups! Other DLC colors: Toolcraft DLC Black BCG and Toolcraft DLC Gray BCG. The Ionbond Diamond Like Carbon (DLC) finish is an incredibly hard (90 Rockwell) self-lubricating finish...$169.99 -
Aero Precision Black Nitride BCG 6.5 Grendel
Aero Precision Products
$160.00Free Shipping on all Aero Precision BCGs! Should you need an Aero Precision product we don't carry, we recommend going directly to the great folks at Aero Precision. Aero Precision is a leader in AR15 parts manufacturing and this Bolt Carrier Group is...$160.00 -
Aero Precision Black Nitride BCG 308
Aero Precision Products
$235.00Free Shipping on all Aero Precision BCGs! Should you need an Aero Precision product we don't carry, we recommend going directly to the great folks at Aero Precision. Aero Precision is a leader in AR parts manufacturing and this Bolt Carrier Group is...$235.00 -
Aero Precision Nickel Boron BCG 308
Aero Precision Products
$255.00Free Shipping on all Aero Precision BCGs! Should you need an Aero Precision product we don't carry, we recommend going directly to the great folks at Aero Precision. Aero Precision is a leader in AR parts manufacturing and this upgraded Nickel Boron...$255.00 -
Out of Stock
Aero Precision Phosphate BCG 308
Aero Precision Products
$220.00Free Shipping on all Aero Precision BCGs! Should you need an Aero Precision product we don't carry, we recommend going directly to the great folks at Aero Precision. Aero Precision is a leader in AR parts manufacturing and this Phosphate finished Bolt...$220.00 -
On SaleSee Best Price In Cart!
Toolcraft Nickel Boron BCG 6.5 Grendel
Toolcraft
Now: $179.99Was: $199.99Free Shipping on all Toolcraft Bolt Carrier Groups! Your 6.5 Grendel build deserves the best bolt carrier group money can buy. This 6.5 Grendel Nickel Boron Type 2 BCG by Toolcraft is the highest quality BCG on the market today. Finished in Nickel Boron...Now: $179.99Was: $199.99 -
Out of Stock
Toolcraft Titanium Nitride BCG 6.5 Grendel
Toolcraft
$199.99Free Shipping on all Toolcraft Bolt Carrier Groups. Titanium Nitride (TiN) is an extremely hard ceramic material, often used in aerospace and military applications that improves maintenance, cleaning, and edge retention. This finish provides a...$199.99 -
Out of Stock
Toolcraft DLC Gray BCG 6.5 Grendel
Toolcraft
$199.99Free Shipping on all Toolcraft Bolt Carrier Groups! Your 6.5 Grendel build deserves the best bolt carrier group! This 6.5 Grendel BCG by Toolcraft is the highest quality BCG on the market today. The Ionbond Diamond Like Carbon (DLC) finish is an...$199.99 -
Out of Stock
Toolcraft Black Nitride BCG 7.62x39
Toolcraft
$159.99Free Shipping on all Toolcraft Bolt Carrier Groups! Note: This 7.62X39 BCG is not compatible with the Palmetto State Armory KS-47 Your 7.62X39 AR build deserves the best bolt carrier group money can buy. This 7.62X39 BCG by Toolcraft is the...$159.99 -
Out of Stock
Toolcraft Black Nitride BCG 6.8 SPC
Toolcraft
$149.99Free Shipping on all Toolcraft Bolt Carrier Groups! Your 6.8 SPC build deserves the best bolt carrier group money can buy. This 6.8 SPC BCG by Toolcraft is the highest quality BCG on the market today. Finished in Black Nitride for a lifetime of flawless...$149.99 -
Out of Stock
Toolcraft Black Nitride BCG 224 Valkyrie
Toolcraft
$155.00Free Shipping on all Toolcraft Bolt Carrier Groups! Your .224 Valkyrie build deserves the best bolt carrier group money can buy. This .224 Valkyrie BCG by Toolcraft is the highest quality BCG on the market today. Finished in Black Nitride for a lifetime...$155.00 -
See Best Price In Cart!
Toolcraft Nickel Boron BCG 7.62x39
Toolcraft
$199.99Free Shipping on all Toolcraft Bolt Carrier Groups! Note: This 7.62X39 BCG is not compatible with the Palmetto State Armory KS-47 Your 7.62x39 AR build deserves the best bolt carrier group money can buy. This 7.62x39 Nickel Boron BCG by Toolcraft...$199.99 -
On SaleSee Best Price In Cart!
Toolcraft DLC BCG 7.62X39
Toolcraft
Now: $169.99Was: $199.99Free Shipping on all Toolcraft Bolt Carrier Groups! Note: This 7.62X39 BCG is not compatible with the Palmetto State Armory KS-47 Your 7.62X39 build deserves the best bolt carrier group! This 7.62X39 BCG by Toolcraft is the highest quality BCG on...Now: $169.99Was: $199.99
