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

What is the tube diameter? I’m looking for a good mount for an AR platform — 4 Answers

by Chris Hosner, from TX, United States Asked on January 26, 2020

Name Primary Arms SLx 1-8x24mm Rifle Scope, 30mm Tube, First Focal Plane (FFP) (4.3)
$549.99 $479.99 Save 13%
View Product
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
Expert Answer
A
Answered by Armando R., Gear Expert, from IL, United States, on February 26, 2020

MPN: 610098 is a 34mm tube
MPN: 610029 is a 30mm tube
MPN: 610032 is a 30mm tube

6 of 21 found the following answer helpful.
Was it helpful to you? Yes | No
A
Answered by Jonny4523, guest, from IN, United States, on November 19, 2020

Primary arms website says 30mm for 610098

2 of 2 found the following answer helpful.
Was it helpful to you? Yes | No
A
Answered by vSIG, member, from CA, United States, on March 30, 2022

MPN: 610098 is a 34mm tube?
No, Every website it say its 30mm tube? What is the confusion you have Armando?

Was it helpful to you? Yes | No
A
Answered by Ricky, member, from CA, United States, on October 11, 2020

According to the Primary Arms website, product MPN 610098 has a tube diameter of 30mm, not 34mm.

Was it helpful to you? Yes | No