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A*B Pro 5.56 Bolt Carrier Group - Complete Nickel Boron Assembly
A*B Pro 5.56 Bolt Carrier Group - Complete Nickel Boron Assembly


 



Our Price: $199.99

Availability:: Usually Ships in 24 to 48 Hours
Product Code: ABABCGNIB
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Description
 
A*B Arms A*B Pro 5.56 Bolt Carrier Group is built to Mil-Spec dimensions. The Nickel Boron coated Bolt and Cam Pin needs virtually no lube during use. The Nickel Boron coated Carrier is coated for extra lubricity and the phosphate coated extractor has a surface finish that provides superior extraction during firing.

These Bolt Carrier Groups are ready to drop into your rifle. Our Bolt Carrier Groups are specially made on high end Swiss machinery to have exacting tolerances and surface finish. A*B Arms is known by rifle manufacturers for manufacturing one of the finest quality bolts and extractors available. This has won us contracts with some of the highest quality AR manufacturers in the business. If you want to buy super high quality parts offered by the company that actually manufactures them, then you've come to the right place.

Bolt
Carpenter 158 Steel
Heat treated per Mil-Spec Requirements
Shot Peened per Mil-Spec Requirements
MPI Tested Material
Nickel Boron Coated

Bolt Carrier

8620 Steel
Nickel Boron Coated
Nickel Boron Coated Bore
M-16 Style with more mass for better functioning in semi or full auto rifles

Gas Key

4130 Steel
Nickel Boron Coated
G
as Key Screws - 4140 Steel properly staked per Mil-Spec requirements

Cam Pin
4340 Steel
Heat treated per Mil-Spec Requirements
Nickel Boron Coated

Extractor
Aircraft Quality E4140 Steel
Heat treated per Mil-Spec Requirements
Shot Peened per Mil-Spec Requirements
Manganese Phosphate Coated per Mil-Spec Requirements

Firing Pin

AISI 8740 Steel
Chrome Coated

Made in the USA!







Average Customer Review: 5 of 5 Total Reviews: 45 Write a review.

  0 of 0 people found the following review helpful:
 
RE; BCG Quality August 26, 2017
Reviewer: art neely from oakland, CA United States  
.. the BCG is top quality.. if the old saying goes.. you get what you pay for ..this is the case. I wanted a high quality one for a long time..I choose this one. over BCM. Also, I used  "Sootch" reviews on Youtube for advice. It is perfectly made without a mark on it..with all the correct metals etc.

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  0 of 0 people found the following review helpful:
 
The only way to go... March 11, 2017
Reviewer: Keith from Los Angeles, CA  
Purchased the AB Arms BCG, Spikes ST-T2 Buffer & a Tubbs Precision AR-15 Spring, went out to the dessert and shot off 500 rounds without a single jam.  The AB Arms BCG is perfectly machined, smooth as silk, super easy to clean and completely changed the feel of the rifle and no more twangy sounds. First thing I'll order for my next AR-15 build is the AB Arms BCG.  In fact it was so well machined and I liked it so much I ordered their Mod X Gen III chassis.
Thank you AB Arms for the quality products and Adam for your great customer service!

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  0 of 0 people found the following review helpful:
 
BCG January 30, 2017
Reviewer: Jim cox from cave creek, AZ United States  
real nice

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  0 of 0 people found the following review helpful:
 
Quick December 11, 2016
Reviewer: Jason Hope from Rexburg, ID United States  
It was nice to get something sent so quick after buying it. Thank you

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  0 of 0 people found the following review helpful:
 
Nice bolt group September 15, 2016
Reviewer: MIKE MULARONI from THONOTOSASSA, FL United States  
I just fired 150 rounds to test it and it worked flawlessly. Thanks for making another great product. Mike

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