FN-F/FS2000 Rear Harness Adapter

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8.00 (in)
6.00 (in)
1.00 (in)

The FS2000 Rear Harness Adapter is made of heavy duty thinner Mil-Spec 55301, 1” male & female ITW Ghillitex IR Reducing side release buckles, hook & loop Velcro, and an ITW Ghillitex IR Reducing 1” Loop Lock.

The FS000 Rear Harness Adapter attaches to the rear of the stock utilizing the F2000/FS2000’s existing rear sling attachment, and the thumb hole to help stabilize the harness to the weapon. The FS2000 sling attach point is at a position that aids in keeping the weapon at a better center of gravity. The FS2000 Harness is 100% ambidextrous, and also allows the weapon to hang vertically at a higher point than the weapon’s existing sling attach point does.

  • Made in USA
  • Lifetime Warranty
  • Made with MILSPEC MIL-55301 Webbing
  • Made with IR Reducing ITW Military Products hardware
  • Modular single point and two point design
  • 100% Ambidextrous


This video demonstrates the Entire FS2000 Sling kit as well as the individual FS2000 adapter sold on this page.  


This video shows the E-RUSH Sling as well as the URBAN-SENTRY Hybrid Sling demonstration and weapons management techniques.



  • 5
    Absolutely perfect

    Posted by Unknown on Jan 22 2018

    So I was trying to work out how to slip g my FS2000 when I came across the Urban E. R. T. Rear Harness Adapter & I couldn't be happier.

    Thank you for an awesome product @ a great price.

  • 5
    Fits perfect, made of quality material

    Posted by Unknown on Mar 3 2017

    After much looking around I finally found a sling adapter made specifically for this gun. Great sling!!

  • 3
    Quality materials, design is a bit short.

    Posted by Kyle Schrecongost on Nov 6 2015

    Fantastic quality made product, however the adjustment for the strap which wraps thru the thumb hole was a bit short on Velcro.. The Velcro was not long enough for it to meet. I ended up just sewing it together right before the area where the Velcro meets. If they added Velcro the full length of the thumb hole strap, this would be a 5 Star product.

    Comment Added by URBAN-ERT SLINGS, LLC:
    The Horizontal harnesses are designed specifically for the F/FS2000 manufactured by FN Herstal. The Airsoft Version of this rifle has a longer stock body and therefore will not allow the 2.5" of velcro overlap designed into the harness. The velcro is however only to maintain the excess webbing after adjustment. The male buckle has a webbing tension feature designed into it which is what maintains the adjustment. If you are ordering this kit for an Airsoft version of the real rifle, you can simply install and adjust the horizontal harness and once adjusted, remove the horizontal harness and just hand sew a few loops into the excess webbing of the harness to maintain it's position. So, we are assuming that the 3 stars review was for it not fitting an airsoft rifle.

  • 5
    Does the job at a fraction of the cost from FN.

    Posted by JB on Jul 20 2015

    It now fits perfectly on my FS2000 and it snaps right into the single point sling I already had. I only had to let it out a minor amount of slack to get the clasp to catch around my rifle. No problems otherwise.

  • 5
    Fits perfectly on the G&G F2000

    Posted by Steve on Mar 14 2015

    Perfect fit and function. This product is a must if you want to utilize a sling. Further, it improves the point at which the weapon attaches to the sling.

  • 5
    Great Fit!

    Posted by KB on Jan 23 2015

    I added this harness adapter to my FS2000 along with a Mash Hook Adapter so I could switch the sling from my PS90 to my FS2000 and they work great! Fits nicely, works well and the video instruction to put it on was a big help.

  • 5
    Great product

    Posted by Zenen de armas on Feb 6 2014

    I am very impressed how easy it is to install. It's exactly what I needed to compliment both my weapons the ps-90 and fs2000. Thanks for the quick response when I had a concern about the shipping issue. I will definitely recommend your company with a great product and service.

    Thanks again

    Zenen de armas

  • 5
    Excellent fit

    Posted by Unknown on Jan 21 2014

    Strap fits perfectly and is a quality piece.