WMD Guns NiB-X Nickel Boron Mil-Spec Carbine Buffer Tube

WMD Guns NiB-X Nickel Boron Mil-Spec Carbine Buffer Tube

Product Code:
Calculated at Checkout
$38.00 $36.95



  • Compatible with all standard AR-15 lowers
  • NiB-X Nickle Boron coated inside and out
  • NiB-X Nickel Boron coating provides a lubricious surface and ensures smooth cycling as it minimizes fouling or grit adhesion
  • Mil-Spec 6-position carbine buffer tube
  • Four drain holes and vented


  • Material: 7075-T6 aluminum
  • Finish: NiB-X Nickle Boron
  • Weight: 3.88 oz.


  • AR-15 and AR-10


If you’re looking for a carbine buffer tube for your next build, you might want to consider a Nickel Boron buffer tube. Wing Tactical offers a quality Nickel Boron Mil-Spec receiver extension from WMD Guns. The WMD NiB-X Buffer Tube is a quality lightweight extruded aluminum buffer tube that will give you a long service life of easy adjustments.

WMD’s NiB-X Nickle Boron Buffer Tube is a Great Choice for Your Next Build

The WMD NiB-X buffer tube is the perfect piece for a custom AR Build. Update your fixed sock system to an adjustable M4 style stock. The WMD Stock features six different precisely positioned notches that will allow you to set your length of pull to the optimum length for your best shooting experience. The WMD NiB-X Buffer Tube is precision machined from a raw aluminum extrusion for lightweight strength that you can count on. This carbine buffer tube is coated with WMD’s exclusive NiB-X Nickel Boron process. NiB-X is tougher than other manufacturer’s nickel boron plating because they create their solution from raw constituents and use a unique lead-free process that ensures an even distribution over surfaces. NiB-X is harder and more resistant to friction than other Nickel Boron finishes. Choose this Nickel boron buffer tube and you’ll get a quality, long service life. The exterior quality coating will allow easy adjustments while the Nickel Boron interior will feature less friction and resist fouling better than other carbine buffer tubes. The self-lubricious nature of NiB-X will reduce buffer and spring wear over the life of your system.

Wing Tactical and WMD Quality and Value

Wing Tactical is proud to partner with WMD Guns to bring you their exclusive line of Nib-X Nickel Boron plated parts. NiB-X parts are a great value because they provide a long service life with less required maintenance than parts with lesser quality coatings. Choose NiB-X components and give yourself an edge.

Write a Review

7 Reviews

  • nib buffer tube

    Posted by Jason on 30th Sep 2020

    Shipping was fast and the pictures don't do this piece justice. The finish is matte but has a slight luster so I couldn't be happier it really looks far more expensive than it is.

  • Great Product!!

    Posted by wayne on 14th May 2020

    Fits well on the Aero precision AR 15/10 builds looks great.

  • Great Buffer Tube - Bright Silver

    Posted by Monty on 7th Apr 2020

    Definitely the buffer tube to get if you're going for a silver-accented build. It is a really bright silver color and looks great alongside WMD's Nickel Boron LPK.
    This buffer tube does have some small machine marks from front to back, but nothing noticeable at a distance.

  • Buffer tube

    Posted by Izzy on 9th May 2019

    Very cool, only issue I have with it, buffer tube, ISS it feels like it has a few burrs on the inside towards the middle of the tube. Other than that awesome

  • Thanks

    Posted by George on 20th Dec 2018

    Fast shipping!

  • Durable Product

    Posted by Unknown on 19th Nov 2018

    The nickel boron coating on this buffer tube was not completely smooth however it has held up to various rough uses already. Fit the stock tolerances very well and slides wonderfully. Finish was where there was more to be desired.

  • Smoothed out my action, and looks awesome paired with a bead-blasted stainless barrel.

    Posted by Josh on 19th Jun 2018

    Put this tube on a Aero Precision Gen2 lower, (upper / lower and handguard are Cerakoted Forest Green) and its a great combination with the BA Hansen stainless barrel, the NIB-X coating on this tube looks a lot like matte stainless. Who knew green and silver looked so good together? I'll be replacing my lower controls with all WMD NIB-X parts in the future. Some matte titanium take-down pins should match up nicely with the total package. A bonus feature is that the interior of the tube is also NIB-X, which helps smooth things out internally, and it certainly did that!

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