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Questions & Answers
What are the differences between this (nickel-boron) and the Enhanced version? Manufacturer Answer

The TRYBE Defense Mil-Spec 5.56 Enhanced Complete Bolt Carrier Group also has enhanced gas key screws and cam pin. While the TRYBE Defense Mil-Spec AR-15 .223/5.56/.300 AAC Complete Bolt Carrier Group BCG does not.

by TRYBE, Manufacturer, July 29, 2022
Will this work on a 300 blackout Expert Answer

This bolt carrier is for 223 556 and 300

by Ryan Tarczynski, Gear Expert, February 19, 2021
Customer Reviews
Helpful Positive Review
Nickel Boron BCG by Napoleon2016, Verified Owner, July 9, 2025
Best budget friendly Nickel Boron BCG available. I've used this in many AR builds. It's a must-have!
1/1 found this helpful
Helpful Positive Review
Backup BCG by Jimmy, June 12, 2021
I currently own two AR rifles in 5.56, and wanted a backup bcg. I dropped this bcg into my carbine and it is working flawlessly. Fit and finish are good, but not excellent. Then again, this also cost me just north of $100, so I feel this product is ...
Read More...
8/8 found this helpful
Helpful Positive Review
good affordable carrier by M, Verified Owner, April 1, 2025
Used this for a recent build. It seems nice and everything is within spec. The price is near impossible to beat. I'm happy with it. Great for any build that just needs 'a carrier' so to speak.
1/1 found this helpful
Helpful Positive Review
Trybe bolt by Bob, Verified Owner, May 17, 2023
Works as it should. Product does not come oiled. Only 300 rds fired. No problems so far. Does look nice and slides in real nice. Only time will tell if the coating will hold. Will update after 1000 rds.
4/4 found this helpful
Helpful Positive Review
alright product by Tie, Verified Owner, February 14, 2022
This product does its job. I would not recommend this product if you're going to put 5000+ rounds through it. This is basically for those individuals who shoot a box a month. The carbon built-up is significant on the bolt. Carbon tends to cake on the...
Read More...
4/9 found this helpful
Helpful Positive Review
Why I went with by Joe, Verified Owner, March 9, 2024
I went with the Nickle Boron because it is designed an machined as a mil spec BCG. The standards are unique to the .223 but still works with the 5.56 as designed. Exacting standards require a close tolerance fit and the parts match for a smoother mor...
Read More...
1/2 found this helpful
Read All 88 Reviews
Color:
Black Nitride
Finish:
Black Nitride
Fabric/Material:
AISI 8620 Steel
Caliber:
.223 Remington, .300 AAC Blackout, 5.56x45mm NATO
Gun Make:
AR Platform
Gun Model:
AR-15
Weight:
11.3 oz
Condition Details:
Open Box
Condition:
Used
Condition Quality:
Excellent
Additional Features:
Rockwell Harness - 78-80 HRc
Gun Type:
Rifle

Code: TRB-BCG-BCGCR-BCG-BN-EDEMO-OB-B

MPN: BCG-BN-EDEMO

Product No Longer Available

Product Info for TRYBE Defense Mil-Spec AR-15 .223/5.56/.300 AAC Complete Bolt Carrier Group (BCG) BCG

Are you looking for the best Bolt Carrier Group BCG on the market? This fully assembled Bolt Carrier Group BCG from TRYBE Defense includes the bolt, bolt carrier, gas key, firing pin, cam pin, and firing pin retaining pin. Every bolt is High Pressure Tested (HPT) and Magnetic Particle Inspected (MPI) before making its way to our loyal TRYBE. This Nickel Boron Bolt Carrier Group is machined from ultra-durable and corrosion-resistant 8620 steel and hardened to mil-spec conditions to provide you with years of reliable service. The interior of the bolt carrier and bolt carrier key are chrome-lined on the M16 Phosphate Bolt Carrier Group BCG only. This BCG is compatible with .223, 5.56, and .300 AAC-chambered AR-15s and is available in a variety of gorgeous finishes that will maintain the integrity of your BCG in any environment, making it the perfect BCG for any shooter serious about the quality of their build. For a consistently smooth and reliable cycle, pick up the TRYBE Defense Mil-Spec AR-15 .223/5.56/.300 AAC Complete Bolt Carrier Group BCG today!image

For other quality gear to carry and protect everything you'd need for a day at the range check out the premium field accessories that your loyal friends TRYBE Tactical and TRYBE Optics have for you. Start customizing today and get ready to JOIN. THE. TRYBE.

Features of TRYBE Defense Mil-Spec AR-15 .223/5.56/.300 AAC Complete Bolt Carrier Group BCG BCG

  • Fully Assembled Mil-Spec Bolt Carrier Group BCG; Including the Bolt, Bolt Carrier, Gas Key, Firing Pin, Cam Pin, and Firing Pin Retaining Pin
  • Every Bolt is High Pressure Tested (HPT) and Magnetic Particle Inspected (MPI)
  • AISI Steel 8620 M16 Nickel Boron Bolt Carrier Group BCG
  • AISI Steel 8620 M16 Black Nitride Bolt Carrier Group BCG
  • AISI Steel 8620 M16 Nickel Boron Bolt Carrier Group BCG
  • AISI Steel 8620 M16 Black Nitride Bolt Carrier Group BCG
  • Interior Black Nitride-Lined M16 Phosphate Bolt Carrier
  • Interior Black Nitride-Lined M16 Phosphate Bolt Carrier Key
  • Shot Peened
  • Enhanced Ejector
  • Enhanced Extractor Pin
  • Gas Key Staked to Mil-Spec Standards
  • Mil-Spec Hardened Fasteners

Package Contents:

  • TRYBE Defense Mil-Spec AR-15 .223/5.56/.300 AAC Complete Bolt Carrier Group BCG

Gun Barrels

113 / 13
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Gun Parts and Accessories

152 / 52
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Gunsmithing Tools & Accessories

115 / 15
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Gun Triggers

114 / 14
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Magazine and Accessories

122 / 22
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Gun Sights

118 / 18
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Gun Stocks

118 / 18
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Mounts, Rings and Accessories

119 / 19
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Related Products to TRYBE Defense Mil-Spec AR-15 .223/5.56/.300 AAC Complete Bolt Carrier Group (BCG) BCG

TRYBE Defense Mil-Spec AR-15 .223/5.56/.300 AAC Complete Bolt Carrier Group (BCG) BCG Unavailable & Discontinued Models

List of Unorderable Models

  • USED, TRYBE Defense Milspec Complete Bolt Carrier, Black Nitride, BCG-BN , MPN: BCG-BN-EDEMO , Code: TRB-BCG-BCGCR-BCG-BN-EDEMO-OB-B
  • USED TRYBE Defense Milspec Complete Bolt Carrier, Black Nitride, BCG-BN, EDEMO13, Condition Fair, Other , MPN: BCG-BN-EDEMO13 , Code: TRB-BCG-BCGCR-BCG-BN-EDEMO-OT-D
  • DEMO, TRYBE Defense Milspec Complete Bolt Carrier, Black Nitride, BCG-BN , MPN: BCG-BN-DEMO , Code: TRB-BCG-BCGCR-BCG-BN-DEMO
  • USED TRYBE Defense Milspec Complete Bolt Carrier, Nickel Boron, BCG-NB, EDEMO8, Used, Condition Fair , MPN: BCG-NB-EDEMO8 , Code: TRB-BCG-BCGCR-BCG-NB-EDEMO8
  • USED TRYBE Defense Milspec Complete Bolt Carrier, Black Nitride, BCG-BN, EDEMO15, Used, Condition Like New , MPN: BCG-BN-EDEMO15 , Code: TRB-BCG-BCGCR-BCG-BN-EDEMO15
  • USED TRYBE Defense Milspec Complete Bolt Carrier, Black Nitride, BCG-BN, EDEMO14, Condition Fair, Scratches , MPN: BCG-BN-EDEMO14 , Code: TRB-BCG-BCGCR-BCG-BN-EDEMO-SC-D
  • TRYBE Defense Milspec Complete Bolt Carrier, Black Nitride, BCG-BN , MPN: BCG-BN , UPC: 810030580454 , Code: TRB-BCG-BCGCR-BCG-BN
  • USED, TRYBE Defense AR-15 5.56 Complete Bolt Carrier Group BCG, High-Polished Metallic Chrome Nitride, BCG556-MC , MPN: BCG556-MC-EDEMO , Code: TRB-BCG-BCGCR-BCG556-MC-EDEMO-OB-B
  • TRYBE Defense Milspec Complete Bolt Carrier, Nickel Boron, BCG-NB , MPN: BCG-NB , UPC: 810030580461 , Code: TRB-BCG-BCGCR-BCG-NB
  • DEMO, TRYBE Defense Milspec Complete Bolt Carrier, Nickel Boron, BCG-NB , MPN: BCG-NB-DEMO , Code: TRB-BCG-BCGCR-BCG-NB-DEMO
  • TRYBE Defense AR-15 5.56 Complete Bolt Carrier Group BCG, High-Polished Metallic Chrome Nitride, BCG556-MC , MPN: BCG556-MC , UPC: 810089411907 , Code: TRB-BCG-BCGCR-BCG556-MC
  • USED TRYBE Defense AR-15 5.56 Complete Bolt Carrier Group BCG, High-Polished Black Chrome Nitride, BCG556-BC, EDEMO3, Condition Parts Only/Salvage, Wrong Product , MPN: BCG556-BC-EDEMO3 , Code: TRB-BCG-BCGCR-BCG556-BC-EDEMO-WP-F
  • TRYBE Defense AR-15 5.56 Complete Bolt Carrier Group BCG, High-Polished Black Chrome Nitride, BCG556-BC , MPN: BCG556-BC , UPC: 810089411891 , Code: TRB-BCG-BCGCR-BCG556-BC
  • TRYBE Defense AR-15 5.56 Complete Bolt Carrier Group BCG, High-Polished Gold Titanium Nitride, BCG556-GLD , MPN: BCG556-GLD , UPC: 810089411914 , Code: TRB-BCG-BCGCR-BCG556-GLD
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Last updated 2026-09-09 UTC.