MA C158 Nitride BCG

review
5
0
5
Your Price: $159.95
Out of Stock.
Part Number:MA-C158-NIT-BCG
The MA Bolt Carrier Group - Auto Version - for your M4 or AR15.  Machined to USGI specifications. This M16/M4 Carrier includes the proper Mil-Spec Gas Key. The Gas Key Heat Treated per USGI specifications. The Gas Key is secured to the Carrier with 620 Loctite & OCKS Fasteners, properly staked per Military-Specifications. These properly hardened parts insure a strong staking and proper Gas System functioning. The Bolt Assembly is machined from Mil-Spec Carpenter 158 Steel, Shot Peened for increased strength and includes Tool Steel machined Extractor and Ejector, Colt Extractor spring, Sprinco Ejector Springs and is High Pressure Tested and Magnetic Particle Inspected. 


Features:
  • M16 8620 Tool Steel Carrier
  • Hard Chrome Bore
  • MA Shield Logo Laser Engraved
  • Carpenter 158 Steel
  • Heat Treated
  • Shot Peened
  • HPT Bolt - High Pressure Tested 
  • MPI Bolt - Magnetic Particle Inspected
  • S7 Tool Steel Extractor
  • Sprinco Extractor Spring
  • Sprinco Ejector Spring
  • 8620 Hard Chrome Internal Gas Key Hardened to USGI Specifications
  • OCKS (Optimized Carrier Key Screws) Fasteners
  • Key Staked Per Mil-Spec using 620 Loctite
  • 17-4 Stainless Firing Pin
  • 8620 Cam Pin with directional arrow lasered on
  • Machined to USGI Specifications
  • H&M Black Nitride finish
  • Bolt Comes Pre-Lubed with Cherrybalmz BRB
  • FREE GAS RINGS FOR LIFE


Each BCG is individually test fired (3rds of ARMSCOR 223REM 55GR) BCG will ship as is, BCG was lubed and might be dirty from the test firing procedure.


The Modern Armory Bolt Carrier Group is proudly MADE IN THE USA by hard working American men and women.


*Lifetime Guarantee covers manufacturing defects in materials and workmanship, regardless of the age of the product, but it does not cover normal wear and tear. Wear and tear is damage that naturally and inevitably occurs as a result of normal use.



ITAR: International Traffic in Arms Regulations Controlled

5 Stars
BCG
The quality and attention to detail is second to none , I would highly recommend it
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Reviewed by: (Verified Buyer)  from Colorado . on 7/8/2020
5
5 Stars
Excellent
Great bcg. Love the OCKS screws, the sprinco springs, and the finish. Makes it well worth the price.
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Reviewed by: (Verified Buyer)  from Idaho. on 6/2/2020
5
5 Stars
Solid BCG
This is by far one of the best BCGs I own, Ran it with the lube that came on it cause I forgot to lube. I thought it would be ruined, came out without a scratch. I recommend this to anyone that wants a solid BCG.
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Reviewed by:  from Texas. on 5/30/2020
5
5 Stars
Black nitride bcg review
This is a very nice BCG, it came as described with the Sprinco upgrades, fit and finish are excellent. I’m not sure you can buy a better BCG for the money,... That being said, it’s worth every penny and I will continue to do business with MA
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Reviewed by:  from FULKS RUN. on 5/24/2020
5
5 Stars
Nitride BCG
This is a very nice BCG, it came as described with the Sprinco upgrades, fit and finish are excellent. I’m not sure you can buy a better BCG for the money, I just wish they had more in stock. The NP3 plated BCG is the one I wanted, but had to settle for the intrided version. That being said, it’s worth every penny and I will continue to do business with MA
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Reviewed by:  from Winston Salem. on 5/19/2020
5

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