+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 Yankee Hill Machine AR-15 12.25 Inch Rifle Length MR7 M-Lok Handguard, Includes All Tools, Parts, and Instructions — 5 Questions & 4 Answers

Name Yankee Hill Machine AR-15 12.25 Inch Rifle Length MR7 M-Lok Handguard, Includes All Tools, Parts, and Instructions (4.1)
$190.95 $159.99 Save 16%
View Product
Write a Review
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)
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
scotty, guest, from WI, United States, asked on April 07, 2019

What's the internal diameter?

Expert Answer
A
Answered by Jonathan D., Gear Expert, from IL, United States, on November 18, 2019

Yankee Hill Machine does not specify the internal diameter, please contact them directly for further assistance.

0 of 5 found the following answer helpful.
Was it helpful to you? Yes | No
Share
View 2 More Answers Submit Your Answer
Q
Waldorf, guest, from FL, United States, asked on January 20, 2020

YHM states on their website that their YHM-9621 Forearm Wrench should be used to install this handguard. Is this one of tools that is included?

Expert Answer
A
Answered by Mark H., Gear Expert, from IL, United States, on March 04, 2020

Doesn't look like it, YHM says

Includes
Rifle Length M-Lok® Handguard
Barrel Nut
Jamb Nut
Anti-Rotation Screws
Installation Instructions

Mark H.

2 of 4 found the following answer helpful.
Was it helpful to you? Yes | No
Share
Submit Your Answer
Q
Goddess Arms, member, from MD, United States, asked on June 10, 2024

What is the thread pitch for the barrel nut to the handguard?

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
Pat, guest, from MO, United States, asked on August 18, 2020

Is this a new product or a used hand guard?

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
Nate, member, from WA, United States, asked on August 10, 2020

What is the profile of this handguard?

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.