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 Primary Weapons Systems MOD 2 FSC Series Flash Suppressing Compensator — 8 Questions & 10 Answers

Name Primary Weapons Systems MOD 2 FSC Series Flash Suppressing Compensator (3.7)
$99.95 $84.96 Save 15%
View Product
If you have questions regarding availability, pricing, shipping options for this item or need an answer right now, please contact our customer service team.
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
kev, member, from ND, United States, asked on April 28, 2021

What is the thread pitch?

Expert Answer
A
Answered by Nick B., Gear Expert, from IL, United States, on October 21, 2021

The 7.62x39 model has 14x1 LH threads, the .223/5.56 model has 1/2x28 threads, and
the .308 model has 5/8x24.

Was it helpful to you? Yes | No
Q
Poppi, member, from NC, United States, asked on October 03, 2017

what is the overall length of the item?

Expert Answer
A
Answered by Carly R., Gear Expert, from IL, United States, on October 09, 2017

This link will have all your specifications on length depending on what caliber you are working with: https://primaryweapons.com/store/product/flash-suppressing-compensator/

Was it helpful to you? Yes | No
Expert Answer
A
Answered by Ethan, Gear Expert, from IL, United States, on March 14, 2022

I would recommend reaching out to the manufacturer directly for another copy of installation instructions. You can reach them by using the following link:
https://www.primaryweapons.com/contactus/

Was it helpful to you? Yes | No
Expert Answer
A
Answered by Nick B., Gear Expert, from IL, United States, on October 21, 2021

This compensator does not include a crush washer. Please email us at TechSales@OpticsPlanet.com so that we can provide you with some compatible options.

Was it helpful to you? Yes | No
Q
jesse, member, from TN, United States, asked on August 03, 2020

Does this come with a shim set or a crush washer?

Expert Answer
A
Answered by Julia, Gear Expert, from IL, United States, on February 12, 2021

No, it does not.

Was it helpful to you? Yes | No
Q
AlbuquerqueAndrew, member, from NM, United States, asked on July 19, 2020

Is this product able to be pinned and welded?

Expert Answer
A
Answered by Julia, Gear Expert, from IL, United States, on February 12, 2021

Yes, though it will require drilling a small hole into the compensator.

0 of 1 found the following answer helpful.
Was it helpful to you? Yes | No
Q
Keith, guest, from ID, United States, asked on June 13, 2019

Do I need to tune this compensator/flash hider? Currently I have the label at 12 o'clock.

Expert Answer
A
Answered by Robert G., Gear Expert, from IL, United States, on September 20, 2019

Yes, this device has to be timed but, the logo is supposed to be at the 12 o'clock position.

3 of 3 found the following answer helpful.
Was it helpful to you? Yes | No
Q
JR, member, from TX, United States, asked on August 01, 2018

Will this fit a my 6.8 spc ???

Expert Answer
A
Answered by Ethan C., Gear Expert, from IL, United States, on November 09, 2018

It will depend on the thread pitch of your barrel. Most 6.8 SPC barrels are threaded in 5/8x24 so item 3G2FSC58A2 will fit if this applies to your barrel as well.

1 of 1 found the following answer helpful.
Was it helpful to you? Yes | No
Last updated 2025-11-12 UTC.