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Top Sellers

Recoil Technologies AR-15 5.56/.223/.300/.350 Complete Bolt Carrier Group *Made In The USA*
Recoil Technologies AR-15 5.56/.223/.300/.350 Complete Bolt Carrier Group *Made In The USA*
$89.99 Original price $59.99
Davidson Defense 5.56 NATO AR-15 Bolt Carrier Group,
Davidson Defense 5.56 NATO AR-15 Bolt Carrier Group, "Holy" AR-15 Ambidextrous Charging Handle
$99.99 Original price $74.99
Davidson Defense 9MM Nitride Bolt Carrier Group 8620 Alloy Steel – Compatible with Glock and Colt Magazines (External Extractor)
Davidson Defense 9MM Nitride Bolt Carrier Group 8620 Alloy Steel – Compatible with Glock and Colt Magazines (External Extractor)
$134.99 Original price $99.99
Stainless Steel 5.56 Firing Pin Retainer MAR121 **2 Pack**
Stainless Steel 5.56 Firing Pin Retainer MAR121 **2 Pack**
$9.99 Original price $4.99
Davidson Defense 9MM AR PCC Bolt Carrier Group,
Davidson Defense 9MM AR PCC Bolt Carrier Group, "Holy" AR-15 Ambidextrous Charging Handle
$149.99 Original price $114.99
Omega Mfg Firing Pin Retaining Pin Mil Spec AR15 M4 M16
Omega Mfg Firing Pin Retaining Pin Mil Spec AR15 M4 M16
$4.99 Original price $2.99
Recoil Technologies Recoil Technologies AR-15 Side Charging 5.56/.223/.300 Blackout/.350 LegendBCG + Side Charging Handles x2
Recoil Technologies Recoil Technologies AR-15 Side Charging 5.56/.223/.300 Blackout/.350 LegendBCG + Side Charging Handles x2
$114.99 Original price $104.99
Recoil Technologies 9mm AR-15 Firing Pin - Titanium
Recoil Technologies 9mm AR-15 Firing Pin - Titanium
$19.99 Original price $9.99
Davidson Defense LR-308 Nitride Bolt Carrier Group, LR-308 Charging Handle
Davidson Defense LR-308 Nitride Bolt Carrier Group, LR-308 Charging Handle
$144.99 Original price $109.99
Davidson Defense AR-15 Ambidextrous Charging Handle, AR-15 5.56/.233/.330BLK Nitride Bolt Carrier Group
Davidson Defense AR-15 Ambidextrous Charging Handle, AR-15 5.56/.233/.330BLK Nitride Bolt Carrier Group
$92.99 Original price $69.99
Omega MFG Omega Mfg Ar-15 M4 M16 Mil Spec Firing Pin
Omega MFG Omega Mfg Ar-15 M4 M16 Mil Spec Firing Pin
$9.99 Original price $4.99
US Tactical Ind. AR-15 6.5 Grendel II QPQ Nitride Complete Bolt Carrier Group
US Tactical Ind. AR-15 6.5 Grendel II QPQ Nitride Complete Bolt Carrier Group
$119.99 Original price $89.99

New Releases

Davidson Defense Gunner Guru 10.5-inch Carbine-Gas 1:24 .450 Bushmaster AR-15 Freefloat M-Lok Handguard Pistol Full Build Kit, SBR Ready
Davidson Defense Gunner Guru 10.5-inch Carbine-Gas 1:24 .450 Bushmaster AR-15 Freefloat M-Lok Handguard Pistol Full Build Kit, SBR Ready
$298.99 Original price $224.99
Davidson Defense Gunner Guru 10.5-inch Carbine-Gas 1:24 .450 Bushmaster AR-15 M-Lok Handguard Pistol Upper Build Kit
Davidson Defense Gunner Guru 10.5-inch Carbine-Gas 1:24 .450 Bushmaster AR-15 M-Lok Handguard Pistol Upper Build Kit
$158.99 Original price $119.99
Davidson Defense Col Cooper w/Magpul BTR Brace 10.5-inch Carbine-Gas 1:24 .450 Bushmaster AR-15 Freefloat M-Lok Handguard Pistol Full Build Kit
Davidson Defense Col Cooper w/Magpul BTR Brace 10.5-inch Carbine-Gas 1:24 .450 Bushmaster AR-15 Freefloat M-Lok Handguard Pistol Full Build Kit
Free Shipping.
$364.99 Original price $274.99
Davdison Defense Col Cooper w/SBA5 Brace 10.5-inch Carbine-Gas 1:24 .450 Bushmaster AR-15 Freefloat M-Lok Handguard Pistol Full Build Kit
Davdison Defense Col Cooper w/SBA5 Brace 10.5-inch Carbine-Gas 1:24 .450 Bushmaster AR-15 Freefloat M-Lok Handguard Pistol Full Build Kit
Free Shipping.
$391.99 Original price $294.99
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Bolt Carrier Groups (BCG) & Parts

Bolt Carrier Groups (BCG) & Parts subcategories
  • BCG > Product Only
  • BCG Parts
  • BCG Combos

Products [66]

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Stainless Steel 5.56 Firing Pin Retainer MAR121 **2 Pack**
Stainless Steel 5.56 Firing Pin Retainer MAR121 **2 Pack**
$9.99 $4.99 Sale
In Stock.
Add To Cart
Davidson Defense 308 bcg and charging handle combo
Davidson Defense 308 bcg and charging handle combo
$139.99 $104.99 Sale
In Stock.
Add To Cart
Gauntlet Arms Complete Upper Receiver With Bolt Carrier & Charging Handle Combo
Gauntlet Arms Complete Upper Receiver With Bolt Carrier & Charging Handle Combo
$154.99 $134.99 Sale
In Stock.
Add To Cart
Omega MFG Omega Mfg Ar-15 M4 M16 Mil Spec Firing Pin
Omega MFG Omega Mfg Ar-15 M4 M16 Mil Spec Firing Pin
$9.99 $4.99 Sale
In Stock.
Add To Cart
Omega Mfg AR-15 M4 M16 Mil Spec Cam Pin
Omega Mfg AR-15 M4 M16 Mil Spec Cam Pin
$14.99 $7.99 Sale
In Stock.
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Omega Mfg Firing Pin Retaining Pin Mil Spec AR15 M4 M16
Omega Mfg Firing Pin Retaining Pin Mil Spec AR15 M4 M16
$4.99 $2.99 Sale
In Stock.
Add To Cart
LR-308 Finish Your Build Kit - Adapative Tactical Stock
LR-308 Finish Your Build Kit - Adapative Tactical Stock
$324.99 $234.99 Sale
In Stock.
Add To Cart
Davidson Defense LR-308 Nitride Bolt Carrier Group, LR-308 Charging Handle
Davidson Defense LR-308 Nitride Bolt Carrier Group, LR-308 Charging Handle
$144.99 $109.99 Sale
In Stock.
Add To Cart
Custom Deal LR-308 BCG + 20 Round PMAG
Custom Deal LR-308 BCG + 20 Round PMAG
$174.99 $129.99 Sale
In Stock.
Add To Cart
Custom Deal LR-308 LPK + BCG
Custom Deal LR-308 LPK + BCG
$194.99 $149.99 Sale
In Stock.
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KAK Blade AR-15 5.56/.223/.300 BLKOUT/.350 Legend Finish Your Pistol Kit
KAK Blade AR-15 5.56/.223/.300 BLKOUT/.350 Legend Finish Your Pistol Kit
$229.99 $174.99 Sale
In Stock.
Add To Cart
Davidson Defense LR-308 Nitride Bolt Carrier Group, LR-308 Holy Ambidextrous Charging Handle
Davidson Defense LR-308 Nitride Bolt Carrier Group, LR-308 Holy Ambidextrous Charging Handle
$164.99 $134.99 Sale
In Stock.
Add To Cart
Davidson Defense 5.56 NATO AR-15 Bolt Carrier Group,
Davidson Defense 5.56 NATO AR-15 Bolt Carrier Group, "Holy" AR-15 Ambidextrous Charging Handle
$99.99 $74.99 Sale
In Stock.
Add To Cart
Davidson Defense 9MM AR PCC Bolt Carrier Group,
Davidson Defense 9MM AR PCC Bolt Carrier Group, "Holy" AR-15 Ambidextrous Charging Handle
$149.99 $114.99 Sale
In Stock.
Add To Cart
KAK Blade AR-15 Finish Your 9mm Pistol Kit
KAK Blade AR-15 Finish Your 9mm Pistol Kit
$269.99 $199.99 Sale
In Stock.
Add To Cart
Custom Deal Adaptive Tactical AR-15 Finish Your Rifle Build Kit - 5.56/.223/.300/.350
Custom Deal Adaptive Tactical AR-15 Finish Your Rifle Build Kit - 5.56/.223/.300/.350
$274.99 $174.99 Sale
In Stock.
Add To Cart
Custom Deal LR-308 BCG +
Custom Deal LR-308 BCG + "Holy" Charging Handle + LR-308 Lower Parts Kit
$199.99 $149.99 Sale
In Stock.
Add To Cart
Davidson Defense 9MM AR-15 Bolt Carrier Group, Mil-Spec AR-15 Charging Handle
Davidson Defense 9MM AR-15 Bolt Carrier Group, Mil-Spec AR-15 Charging Handle
$134.99 $104.99 Sale
In Stock.
Add To Cart
Custom Deal Gauntlet Arms AR-15 Stock Finish Your Rifle Build Kit - 5.56/.223/.300/.350
Custom Deal Gauntlet Arms AR-15 Stock Finish Your Rifle Build Kit - 5.56/.223/.300/.350
$244.99 $154.99 Sale
In Stock.
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Custom Deal AR-15 ETS 9mm Magazine + United Defense 9mm BCG + AR-15 M4 Charging Handle
Custom Deal AR-15 ETS 9mm Magazine + United Defense 9mm BCG + AR-15 M4 Charging Handle
$159.99 $119.99 Sale
In Stock.
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Custom Deal AR-15 ETS 9mm Magazine + United Defense 9mm BCG
Custom Deal AR-15 ETS 9mm Magazine + United Defense 9mm BCG
$149.99 $109.99 Sale
In Stock.
Add To Cart
Custom Deal AR-15 ETS 9mm Magazine + United Defense 9mm BCG +
Custom Deal AR-15 ETS 9mm Magazine + United Defense 9mm BCG + "Holy" Ambidextrous AR-15 Charging Handle
$174.99 $129.99 Sale
In Stock.
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Custom Deal Gauntlet Arms Special Operations AR-15 Stock + .308/7.62 BCG FWD Assist Notches QPQ + LR-308 Charging Handle Aluminum
Custom Deal Gauntlet Arms Special Operations AR-15 Stock + .308/7.62 BCG FWD Assist Notches QPQ + LR-308 Charging Handle Aluminum
$194.99 $119.99 Sale
In Stock.
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Custom Deal Gauntlet Arms Special Operations AR-15 Stock + .308/7.62 BCG FWD Assist Notches QPQ + .308 Ambidextrous Charging Handle
Custom Deal Gauntlet Arms Special Operations AR-15 Stock + .308/7.62 BCG FWD Assist Notches QPQ + .308 Ambidextrous Charging Handle
$174.99 $134.99 Sale
In Stock.
Add To Cart
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If you’re building an AR, looking to change calibers, or just need to change out the BCG in your current AR, this section showcases many different options. Check out our Black Nitride finish BCGs which are easy to clean, don’t require a lot of oil, and are durable and corrosion resistant. If you are looking for something unique with a little flash, yet still a good value, the United Defense Nickel Boron has a nice silvery nickel finish, needs even less oil due to its chemical properties, and is really easy to clean.
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