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.

Shopping Cart

Q&A for Aero Precision 5.56 CMV Barrel w/ Pinned FSB — 12 Questions & 7 Answers

Name Aero Precision 5.56 CMV Barrel w/ Pinned FSB (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
Keith, member, from KY, United States, asked on May 20, 2020

Does it come with a receive,gas tube delta ring,flash suppressor?

Expert Answer
A
Answered by Nick B., Gear Expert, from IL, United States, on November 10, 2021

No, this does not come with any of the mentioned items.

Was it helpful to you? Yes | No
Q
Victor, member, from FL, United States, asked on January 14, 2020

Does this complete upper come with a Bcg/ch?

Manufacturer Answer
A
Answered by Aero Precision USA, Manufacturer from WA, United States, on May 20, 2020

This complete upper receiver does not include a BCG or Charging Handle.

Was it helpful to you? Yes | No
Q
squirtlocker, member, from AZ, United States, asked on January 24, 2023

Does the 20 inch come with a round handguard retainer or a tri angular retainer?

Expert Answer
A
Answered by Hunter, Gear Expert, from OH, United States, on September 06, 2023

The Aero Precision 5.56 CMV Barrel w/ Pinned FSB 20" model comes with a triangle handguard cap.

Was it helpful to you? Yes | No
Q
Ryan Tucker, member, from OH, United States, asked on November 21, 2022

Will 9 inch hand guard fit behind front sight post

Manufacturer Answer
A
Answered by Aero Precision USA, Manufacturer from WA, United States, on December 15, 2022

This will be dependent on the gas length and specific handguard.

Was it helpful to you? Yes | No
Q
joe, member, from HI, United States, asked on April 30, 2022

Can a delta ring be attached and is the front sight base easily removed and reattached?

Manufacturer Answer
A
Answered by Aero Precision USA, Manufacturer from WA, United States, on June 02, 2022

The delta ring assembly kit is necessary and sold separately. The front sight block is factory pinned and do not recommend removing.

1 of 1 found the following answer helpful.
Was it helpful to you? Yes | No
Q
jtomas, member, from CA, United States, asked on November 11, 2024

Does this item come with a gas tube roll pin and the sight post assembly?

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.

Q
Rick, guest, from FL, United States, asked on May 16, 2024

Does this barrel have M4 cut feed ramps?

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.

Q
Boone, member, from TX, United States, asked on March 31, 2024

Does the 16in carbine length come with a round or triangular handguard retainer?

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.

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.

Q
Jason, member, from CO, United States, asked on February 15, 2024

F marked fsb? Description doesn't say what it is.

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.