Search
Compare
main product photo

BC-15 | 12.7X42 | 18" Black Nitride Heavy Barrel | 1:20 Twist | Mid Length Gas System

Be the first to review this product
In stock
SKU
2477-B127X42MHB18120M
$91.93
Add to Wish List Add to Compare

Complete your build: Customers who selected this barrel also bought these BCGs

More Choices:
BC-15 | .223 Wylde/5.56 NATO/.300 Blackout/.350 Le BC-15 | .223 Wylde/5.56 NATO/.300 Blackout/.350 Legend | Right Side Charging Bolt Carrier Group
$84.99
93%
18 Reviews
BCA 6.5 Grendel Type II Side Charging Bolt Carrier BCA 6.5 Grendel Type II Side Charging Bolt Carrier Group
$84.99
98%
13 Reviews
BCA 7.62x39 / 12.7x42 Right Side Charging Bolt Car BCA 7.62x39 / 12.7x42 Right Side Charging Bolt Carrier Group
$84.99
73%
6 Reviews
BCA .22 LR Bolt Carrier Group Right Side Charging BCA .22 LR Bolt Carrier Group Right Side Charging Gen 2
$109.99
100%
5 Reviews
BC-15 | 6.5 Grendel Type II | Rear Charging Bolt BC-15 | 6.5 Grendel Type II | Rear Charging Bolt Carrier Group
$74.99
91%
54 Reviews
Out of stock
BCA .17 HMR Bolt Carrier Group BCA .17 HMR Bolt Carrier Group Right Side Charging Gen 2
$109.99
.223 Wylde/5.56 NATO/.300 Blackout/.350 Legend | R BC-15 | .223 Wylde/5.56 NATO/.300 Blackout/.350 Legend | Right Side Charging BCG - Nickel Boron Finish
$98.95
92%
17 Reviews
Out of stock
BC-15 | .223/5.56 NATO/.300 Blackout/.350 Legend BC-15 | .223/5.56 NATO/.300 Blackout/.350 Legend Rear Charging AR-15 Bolt Carrier Group
$68.99
97%
124 Reviews

More Information
SKU 2477-B127X42MHB18120M
Weight (lbs) 2.700000
Magazine Capacity N/A
Barrel Length 18
Profile Heavy Barrel
Twist 1:20
Barrel Finish Black Nitride
Material 4150 Chrome Moly Vanadium
Caliber 12.7x42
Flutes Non-fluted
Gas System Mid Length
Gas Block System 0.750
Classification Barrel
Platform AR-15
Choke Tubes No
Action Semi-Automatic
Brace Not Included

View Product Manuals

Customer Reviews
Customer Questions
What magazine/ammo does BCA recommend for each caliber?
Caliber Magazine Ammo Grain Weight Ammo Brands   BCA Status AR15 - 223/5.56 MagPul PMAG, MFT 55, 69, 75   Sierra   AR15 - 224 Valkyrie ASC 90 Sierra   AR15 - .22 ARC ASC 88 Hornady   ...
Read More
How do I clean and maintain my AR?
Check out this video to learn How to Clean & Maintain your Rifle 
Read More
Do you have a storefront that I can buy in person?
No we do not have a storefront. You can only purchase online. Sanford, NC is our manufacturing plant. 
Read More
How do I change the barrel in my AR?
Check out this video to learn how to change your AR barrel: https://youtu.be/4C0NEPFur6A?si=Nrhiawz76SWkFeD0
Read More
Please, mind that only logged in users can submit questions

 It is the responsibility of the consumer to ensure all state, local, federal, and ITAR regulations are followed.

You need to be 18 or older to purchase a rifle and 21 or older to purchase a handgun, Pistols, lower assembly or Ammunition.

* Note – We strive to provide the most accurate photographs of our product. Variations may occur in the skeletonized section of the handguard/flash hider you receive.

Attention SignAttention Sign

WARNING: This product can expose you to chemicals, such as lead and other petroleum products, which are known to the State of California to cause cancer and birth defects or other reproductive harm.  For more information go to the California P65 Warning site.

Ratings & Reviews

Be the first to review this product

Write your review
About the BC-15 | 12.7X42 | 18" Black Nitride Heavy Barrel | 1:20 Twist | Mid Length Gas System
Only registered users can write reviews. Please Sign in or create an account
Copyright © 2026 Bear Creek Arsenal, LLC. All Rights Reserved.