+1-800-504-5897 Help Center Check Order Status
About Us Policies Reviews How To
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.

  • 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

Q&A for Precision Armament M4 Muzzle Thread Adapter — 5 Questions & 4 Answers

Name Precision Armament M4 Muzzle Thread Adapter (4.7)
As Low As $22.99 Save Up to 34%
View Product
Write a Review
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)
or Register
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
Bert, guest, from TX, United States, asked on March 30, 2019

Is it 9/16-24 RH or 9/16-24 LH?

Expert Answer
A
Answered by Ethan C., Gear Expert, from IL, United States, on November 14, 2019

That is 9/16x24 Right hand thread.

Was it helpful to you? Yes | No
Share
View 1 More Answer Submit Your Answer
Q
Marc, member, from FL, United States, asked on April 19, 2021

Can I use this step up from 1/2x28 to 5/8x24 in a 6.8mm rifle m4 pattern rifle?

Expert Answer
A
Answered by Ryan Tarczynski, Gear Expert, from IL, United States, on May 07, 2021

If the barrel threading is of 1/2x28 to 5/8x24. If it does not match the threading it will not work or fit properly.

0 of 1 found the following answer helpful.
Was it helpful to you? Yes | No
Share
Submit Your Answer
Q
Dan, guest, from OH, United States, asked on February 26, 2018

What thread dimensions does this cover?

Expert Answer
A
Answered by Ethan C., Gear Expert, from IL, United States, on April 21, 2018

Items A02002 and A02001 adapt from 1/2-28 to 5/8-24.
Items A02003 and A02004 adapt from 9/16-24 to 5/8-24.

Was it helpful to you? Yes | No
Share
Submit Your Answer
Q
Adam Doolan, member, from WV, United States, asked on March 27, 2026

Do I use a crush washer or not to mount this?

Continue As a Guest
Saving...
Sign In or Create an Account (optional)
or Register
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
Jay, member, from GA, United States, asked on January 21, 2024

Can you still use a suppressor with a thread adapter or a thread extension on the barrel?

Continue As a Guest
Saving...
Sign In or Create an Account (optional)
or Register
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.

Last updated 2025-11-12 UTC.