+1-800-504-5897 Live Chat Help Center Check Order Status
About Us Policies Reviews How To
Free Shipping & Free Returns*

FREE SHIPPING on Over 250,000 Products

Enjoy free shipping during the holidays! Shop now and get Free Value Shipping on most orders over $49 to the contiguous 48 states, DC and to all U.S. Military APO/FPO/DPO addresses.

Enjoy Our Extended FREE RETURNS

We want to ensure that making a return is as easy as possible! With our Hassle-Free, Extended Holiday Returns, eligible orders placed from November 12, 2025 on will benefit from an extended return deadline (January 13, 2026 or 30 days after receipt of your order - whichever is later). We'll even cover the cost of return shipping. Learn more about our Return Policy.

  • Entire Store
  • ...
  • Apparel & Footwear
  • Astronomy
  • Everything Else
  • Eyewear
  • Hunting Gear
  • Lab Equipment
  • Military Gear
  • Outdoor Gear
  • Photography Equipment
  • Police, EMS & Fire
  • Shooting
  • Sport Optics
  • Sports & Hobbies
TIP
Shopping Cart

Angstadt Arms Angstadt Bolt Carrier Group (BCG) 5.56 Ar-15 Black Nitride AA56BCGNIT Fabric/Material: Steel, Height: 1.8 in, 10% Off w/ Free S&H

Angstadt Arms Angstadt Bolt Carrier Group BCG 5.56 Ar-15 Black Nitride
Angstadt Arms Angstadt Bolt Carrier Group BCG 5.56 Ar-15 Black Nitride
1 of 1 images
Angstadt Arms Angstadt Bolt Carrier Group BCG 5.56 Ar-15 Black Nitride

Tap Tap to Zoom

Government Export Restriction Government Export Restriction
Questions & Answers
What kinds of steel are the bolt and the carrier made with ? Expert Answer

The Angstadt Arms Angstadt Bolt Carrier Group specifications are:
Machined from 8620 alloy steel with a QPQ black nitride finish
5.56 Bolt is machined from Carpenter 158 tool steel
High pressure tested (HPT) and magnetic particle inspected (MPI)
Shot peened
M16-cut/full auto capable carrier
Properly staked gas key secured to the carrier with grade 8 fasteners
Carrier has forward assist serrations

by Ethan, Gear Expert, January 27, 2022
Hope this is going to work for me, have a 10.5 barrel ar-15 pistol and wanted to upgrade the BCG. Expert Answer

Yes, this will work for your AR-15 pistol.

by Tom B, Gear Expert, October 1, 2021
View All Q&A You Have a Question? Ask!
Customer Reviews
Helpful Positive Review
Holy Batman, this BCG is fantastic by Cynthia, Verified Owner, August 26, 2021
I got this earlier today installed into my ar-15 10.5 inch barrel pistol, and ran 400 rounds. The operation is silk smooth compared to the stock mil-spec I would very much think you could not go wrong buying one if you are looking for something made ...
Read More...
4/4 found this helpful
Helpful Positive Review
Very nice, well made BCG by Shane Smith, Verified Owner, June 24, 2021
I bought one of these a few months ago for a .223 pistol build i built, its awesome functions flawless i would definitely recommend it. The emblem is a nice extra touch. Ive bought my 2nd one a few days ago cant wait for it to arrive to finish my 5.5...
Read More...
1/1 found this helpful
Read All 2 Reviews

Code: 3FF-BCG-AA56BCGNIT

MPN: AA56BCGNIT

UPC: 853427007776

List: $139.99Save 10%
$125.99

Product Info for Angstadt Arms Angstadt Bolt Carrier Group (BCG) 5.56 Ar-15 Black Nitride

This BCG is built to be extra reliable with its strong steel case and exposed gas hole that allows for longer bolt life and easy maintenance. The Black Nitride coating of this BCG provides extra protection to its parts and allows faster heat removal when necessary. The tapered nose and large window allow for easy and thorough cleaning of the Bolt Carrier Group. Each Angstadt Bolt Carrier Group comes with a gas tube and bolt in a heavy duty heat bag that meets military specifications. Angstadt Arms is dedicated to creating the highest quality, most reliable firearms components on the global market.image

WARNING: California`s Proposition 65

Specifications for Angstadt Arms Angstadt Bolt Carrier Group (BCG) 5.56 Ar-15 Black Nitride:

Manufacturer: Angstadt Arms
Fabric/Material: Steel
Height: 1.8 in

Package Contents:

  • Angstadt Arms Angstadt Bolt Carrier Group 5.56 Ar-15 Black Nitride

Angstadt Arms Angstadt Bolt Carrier Group (BCG) 5.56 Ar-15 Black Nitride Orderable Models

List of Orderable Models

  • Angstadt Arms Angstadt Bolt Carrier Group BCG 5.56 Ar-15 Black Nitride , MPN: AA56BCGNIT , UPC: 853427007776 , Code: 3FF-BCG-AA56BCGNIT
Compare (0)
1 item has been added
Add at least two items to compare