+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

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.

  • 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

Do I just need BCG, Barrel and magazine to convert AR-15 from 556 to 6.5 Gren? — 1 Answer

by Pocono Tactical, from PA, United States Asked on December 6, 2024

Name Faxon Firearms 16in, Big Gunner, 6.5 Grendel, Mid-Length, 416-R. QPQ Barrel (5)
$245.00 $202.86 Save 17%
View Product
Write a Review
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
Manufacturer Answer
A
Answered by Faxon Firearms, Manufacturer from OH, United States, on December 11, 2024

Generally speaking, yes, a barrel, bolt/BCG, and magazine are the core components that you will need to swap an AR-15 from 5.56 to 6.5 Grendel. You may also need a new gas block and gas tube if the barrel you purchase requires a different size gas block or length of gas tube than you currently have on the rifle.

Was it helpful to you? Yes | No
Share