AM-15 Free Float Kit, Keymod – 15″

Rated 4.86 out of 5 based on 29 customer ratings
(29 customer reviews)


  • Keymod Rifle Length Free Float Kit
  • Length is 15″
  • Machined to Mil Spec
  • Inside Diameter is 1.35″
  • Weight is 14.4 Ounces (with barrel nut)
  • Finished with Type III Hard Coat Anodize
  • Made From 6061-T6 Aluminum
  • Includes: Steel Barrel Nut, & 3 Allen Head bolts


In stock

UPC: 712038345250 SKU: G2-K066-KA00 Categories: , Tags: , , , , , , ,


The Keymod Rifle Length Free Float Kit provides ultimate strength and durability while also providing comfort and functionality. The Length of this free float is 15″ and weighs 14.4 ounces. Featuring continuous top picatinny rail and bottom and sides designed to accept Keymod rails. Made from 6061-T6 Aluminum, and finished to Mil Spec with type III Hard Coat Anodizing.  This Kit includes a steel barrel nut (1 ¼”-18 thread), and 3 allen head bolts, for forearm. The Keymod series comes in Carbine and Rifle Lengths. Will need the Anderson’s AM15 Barrel Nut Wrench.


Additional information

Weight 1 lbs
Dimensions 16 × 2 × 2 in

29 reviews for AM-15 Free Float Kit, Keymod – 15″

  1. Rated 5 out of 5

    Robert J Kegley

    Looks awesome. Will it fit the AM-10 Hunter?

    • Michael Johnson

      No this is for AR15.

      we are working on the 308 version

  2. Rated 5 out of 5


    Will these be offered in M-LOK?

    • Michael Johnson

      We are working on M-Lok next.

  3. Rated 5 out of 5

    Robert J Kegley

    Awesome. I need one for my AM-10 in M-Lok! Please email me when these are ready.

    • Michael Johnson

      M-Lok is in the works but this will be sometime in the future

  4. Rated 5 out of 5

    Felix A. Rodriguez

    That’s exactly what I need for my build!!! Is it available in M-LOK yet? And if not, when? I need one before the third week of July!!!

    • Michael Johnson

      we are working on the M-Lok. it will be available in the near future

  5. Rated 4 out of 5


    Description says available in Pistol, Carbine, mid-length and rifle but title says 15″. Where can I find the different length versions? Looking for something in the 9″ length.

    • Michael Johnson

      We do not have the other lengths done yet
      These are coming soon

  6. Rated 5 out of 5


    Looks amazing! Recently purchased a am-15 optic ready. Was looking to swap out the forearm for this style is there any other parts I would need ? For example would I use the same delta ring ?

    • Michael Johnson

      you will need to get a low profile steel gas block

      the kit has all you need to attach the forearm, no you will not be using the delta ring assembly.

  7. Rated 5 out of 5


    Need a Mlok please

    • Michael Johnson

      We are in the works with the M-Lok design

  8. Rated 4 out of 5


    Do I need to use AM15 Barrel Nut Wrench (SKU: D2-T006-K01)? Will Adjustable Steel Gas Block (SKU: B2-L056-A00-1) fit?

    • Michael Johnson

      Yes the wrench will work on the barrel nut with this forearm.

      no the gas block will not fit.

  9. Rated 5 out of 5


    Will this forearm work with Upper (AR15-A3-UPPER-UM) and 20″ HBAR with the .936 gasblock?

    • Michael Johnson

      The .936 will not work with the keymod forearm.
      Ten upper will work just fine

      The 20 inch barrel should use .750 gas block and the steel low profile will work

  10. Rated 5 out of 5

    Matt Folds

    Will this rail work with the factory gas block on the am15 with the 16″ barrel ? Or do i need a low profile gas block ?

    • Michael Johnson

      Yes you will need a low profile gas block

  11. Rated 5 out of 5

    Daniel Tate

    Have ordered two of these so far they are great. Light weight and stylish. Easy to install rails match up flawless. Can’t say enough about it great product.

    • Michael Johnson

      Thank you for the support

  12. Rated 5 out of 5


    Will this work on the AM 15 300 blackout. Please tell me what I need to do and what parts I need to make it work

    • Michael Johnson

      Yes this will work with a 300 blackout.
      You will need this kit and to be sure you have a low profile gas block

  13. Rated 5 out of 5


    Do I need to buy the wrench or does it come with it?

  14. Rated 5 out of 5


    Looks great waiting on the MLOK

    • Michael Johnson

      We are working on this project

  15. Rated 5 out of 5

    Jed Mercer

    As much as I love this forearm, it won’t fit the Odin Works Billet upper I have. I’m going to order a standard upper. Great quality I have 2 now!

  16. Rated 4 out of 5


    Are these forearms numbered on the rail?

    • Michael Johnson

      No the Keymod forearms do not have any numbers

  17. Rated 5 out of 5

    richard rathbun

    Will this fit the SKU: AM-04-16HBAR-NY

    • Michael Johnson

      Yes this will work with that barrel

  18. Rated 5 out of 5


    just purchased an AM15 optic ready. the 15″ free float keymod looks great. which low profile gas block will i need to install? any other parts/tools other than barrel nut wrench needed?
    this is my first build. any tips recommendations?
    being a ky native; i am incredibally proud and impressed with your product.
    thank you

    • Michael Johnson

      you need any of our low profile .750 gas block
      steel or alum

  19. Rated 5 out of 5

    Zach Wilson

    Is this available in flat dark earth?

    • Michael Johnson

      as of right now no it is not

  20. Rated 5 out of 5


    What size low profile gas block should I get with this item? Have the am-15

    • Michael Johnson

      you need our low profile steel gas block

  21. Rated 5 out of 5


    I have the 9″ext upper will this fit it

    • Tom Steffner

      Yes Sir

  22. Rated 5 out of 5

    Gunnar Redinbo

    Will the “(AM-15 RAIL, EXT – 12.728″)” fit this item on the lower fore-section?

    • Michael Johnson

      No these will not.
      You need to get keymod rails which we do not have

  23. Rated 5 out of 5

    David fuller

    What is the torque specifications for the barrel nut

    • Tom Steffner

      No Less than 35Ftlbs no greater than 70 Ftlbs

  24. Rated 5 out of 5

    David fuller

    Thank you

  25. Rated 5 out of 5


    will this be available again?

    • Michael Johnson

      Yes these will be available again. We just have many orders we still need to get out.

  26. Rated 5 out of 5


    Looks great! Any updates on when this will be available in MLOK?

    • Michael Johnson

      we are still working on the MLOK no time frame yet.

  27. Rated 5 out of 5


    Can I use this with a 20″ barrel? If not, do you have a free-float forearm for a 20″?

    • Michael Johnson

      Yes this can be used on a 20” barrel

  28. Rated 5 out of 5

    lucas t.

    will this work with the 458 socom barrel sold on this site ? trying to get a build started planning on using all Anderson parts or at least all parts from yall.

    • Michael Johnson

      Yes this will work just fine

  29. Rated 4 out of 5

    Scott Eisenstadt

    This is a good product I need to clean up the threads where the 3 Allen bolts go. Mine are a little worn out I was going to re_tap them what is the thread pitch

Add a review

Your email address will not be published. Required fields are marked *

You may also like…