Free Shipping & Free Returns*

FREE SHIPPING on Over 250,000 Products

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 FREE RETURNS

We want to ensure that making a return is as easy and hassle-free as possible! If for any reason you are not satisfied with your purchase, simply return the item within 30 days of receipt, and we'll cover the cost of return shipping. Learn more about our Return Policy.

Shopping Cart

Q&A for CBC Industries AR-15 Upper Assembly, 300AAC, 16in — 2 Questions & 3 Answers

Name CBC Industries AR-15 Upper Assembly, 300AAC, 16in (5)
Currently Unavailable View Product
Please keep questions related to the product! If you have questions regarding availability, pricing, or shipping options for this item, please contact our customer service team.
Need an answer right now?
Contact us!
Continue As a Guest
Saving...
Sign In or Create an Account (optional)
Why use an OpticsPlanet.com account for my questions and answers?

Having an account with OpticsPlanet.com makes writing questions and answers even better! We’ll save all of your questions and answers in your account, provide you easy access to them, so you can see how the community has responded.

If you’d like to add a question without creating an account, you can proceed with filling out the fields on this form.

Show
Sort by
Filter by
Q
yellow13krato, member, from ID, United States, asked on April 06, 2020

What is the threading for the muzzle break?

A
Answered by Z28camaropower, member, from MN, United States, on May 29, 2021

Should be 5/8 x 24

Was it helpful to you? Yes | No
Q
Matt, member, from NH, United States, asked on March 29, 2022

What barrel profile is on the upper.. m4 profile?

Expert Answer
A
Answered by Ethan, Gear Expert, from IL, United States, on May 12, 2022

The CBC Industries AR-15 Upper Assembly uses a Colt Competition style barrel. This barrel has a nitride finish for increased strength and durability. While featuring a special contour that is designed to be lighter than a conventional SOCOM barrel.

Was it helpful to you? Yes | No
Last updated 2025-11-12 UTC.