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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
Sale Price: $149.99
You save $50.00!

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: 49 Write a review.

  0 of 0 people found the following review helpful:
 
Bolt and BCG ran flawlessly December 11, 2017
Reviewer: Joe Snuffy from Ft Bragg, NC  
Ordered just after black Friday so the order took a bit to get to me, however I got an email letting me know that was going to be the case which was appreciated. Got to put a few hundred rounds on the product and it ran beautifully even though it was close to dry at the start and I added no oil throughout shooting. This is also definitely the easiest bolt I've ever cleaned. More than worth the price IMO.

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  0 of 0 people found the following review helpful:
 
December 10, 2017
Reviewer: Brady Crosby from Laurel, MD United States  
Love the product and love the team that built it!

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  0 of 0 people found the following review helpful:
 
AR 15 Bolt assy November 27, 2017
Reviewer: Michael Rattay from Rockaway, NJ United States  
Customer service was excellent
Bolt assembly is first class.
Shipping was fast
Will buy more

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  0 of 0 people found the following review helpful:
 
Bolt Carrier November 6, 2017
Reviewer: Arnold Adamczyk from Dorr, MI United States  
H?igh qualitity product and fit perfectly as repalcement.

Thanks for the quick shipping also.

Arnold Adamczyk

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  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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