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Questions & Answers
Is this a full auto bolt carrier? Expert Answer

Yes it is.

by Brandon B, Gear Expert, October 28, 2021
Does it come with firing pin? Expert Answer

Yes, this will come with a firing pin.

by Todd, Gear Expert, August 9, 2021
Customer Reviews
Helpful Positive Review
Great bcg for the price by Jn, February 13, 2020
Battle arms is a great company. The bcg is quality and already comes staked. Finish is nice. I ran 500 rounds on my rifle with it so far and have zero issues. I would buy another one on my next build.
2/2 found this helpful
Helpful Negative Review
I purchased this BCG and out of the box I inspected it and took off the factory lube. The finish was quality was not disappointing at first glance and have high confidence that this is a quality BCQ regardless of my less than stellar experience. Whil...
Read More...
3/6 found this helpful
Most Recent Reviews
Battle Arms Development milspec BCG by Time for Jefferson, April 8, 2017
I have not had a chance to put any rounds through my rifle yet so I don't have any info on how the BCG operates but the craftsmanship is right in line with all other parts from the this company. Will update when I have put some rounds through it.
0/19 found this helpful
Read All 3 Reviews
Color:
Black
Finish:
Black Nitride
Weight:
5.7 oz

Code: 2OS-BCG-MSBCG-BAD-BCG-M16

MPN: BAD-BCG-M16

UPC: 810033781155

List: $145.00
$144.79

  • Battle Arms Development M4/M16 Milspec Bolt Carrier Group BCG, Black, BAD-BCG-M16
  • Walker Defense Research Research Steel Bolt Carrier Group BCG, 5.56mm / .300 BLK, DLC, Flat Dark Earth, FDE-DLC-BCG-556
As low as $349.98
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Product Info for Battle Arms Development M4/M16 Milspec Bolt Carrier Group (BCG)

BAD-BCG-M16 M16 Full Auto Bolt Carrier Group BCGimage

M16-cut carrier

Carrier Machined from 8620 steel

Carrier has forward assist serrations

Black Nitride Finish - Advanced lower friction coating that minimizes the need for lubricants and cleaning

Properly staked gas key

Grade 8 Screws

5.56 Bolt is machined from 9130 tool steel

HPT tested/MPI marked

Black o-ring insert on extractor

made in specialized factories

Specifications for Battle Arms Development M4/M16 Milspec Bolt Carrier Group (BCG):

Manufacturer: Battle Arms Development
Color: Black
Finish: Black Nitride
Carrier Material: 8620 Steel
Bolt Material: 9310 Steel
Weight: 5.7 oz

Package Contents:

  • Battle Arms Development M4/M16 Milspec Bolt Carrier Group

Battle Arms Development M4/M16 Milspec Bolt Carrier Group (BCG) Orderable Models

List of Orderable Models

  • Battle Arms Development M4/M16 Milspec Bolt Carrier Group BCG, Black, BAD-BCG-M16 , MPN: BAD-BCG-M16 , UPC: 810033781155 , Code: 2OS-BCG-MSBCG-BAD-BCG-M16
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Last updated 2026-08-06 UTC.