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PWS FSC HK Threaded Barrel Compensator - 15X1

SKU: HKP-00837

PWS HK FSC 91 Compensator - Gen 2 - 15 X 1 Threads

With 2 new additional features:

Internal crush washer that allows for perfect fitment on the widest variety of factory HK and aftermarket barrels. Such as those found on the following firearms HK, PTR, CETME, SAR8/3, Clones & other custom builds. Each PWS comp also includes the tried and true HK style retaining ring for splined barrels such as those found on non-PTR barrels.

Between these 2 new innovations, this is now the finest PWS HK compensator ever made. Ideal for all .223/556 & .308/762 caliber HK rifles. The PWS compensator tames recoil and keeps you on target. The PWS compensator achieves easier and faster followup shots than other muzzle brake devices. Adds an aggressive look to your rifle but TAMES the recoil like no other!


Compatible with all HK style models with barrels threaded 15 X 1 :

  • HK G3, 91, CETME
  • PTR All Variants
  • HK 93, 33, 53
  • HK MR762
  • Other HK rifles and pistols with 15X1 threaded barrels
  • Custom HK clones and custom builds


This is the most effective compensator available for HK rifles period!

We offer healthy quantity discounts on multiple units.

Specifications of the PWS HK Comp:

  • 2.55 inches in length
  • .22 mm diameter
  • 15 x 1 right hand thread
  • US 922R Compliant Part

The FSC91 Tactical Compensator has all of the compensation of the standard PWS DNTC compensator combined with enough flash suppression to keep the flash out of your optics & line of sight.

The PWS FSC HK Compensator has been classified as a non-flash suppressing device by the BATFE. This item is also legally considered a compensator. (see attached BATFE approval letter.) Great for those living in NJ, NY, etc.

Update - June 2018 The California DOJ has determined that this product is not legal in the state of California.

Video Of The PWS In Action: Demo with 6.8 & .308


Origin: USA
922r Value: 1
Price: $98.95
In Stock
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PWS FSC HK Threaded Barrel Compensator - 15X1
PWS FSC HK Threaded Barrel Compensator - 15X1
PWS FSC HK Threaded Barrel Compensator - 15X1
PWS FSC HK Threaded Barrel Compensator - 15X1
PWS FSC HK Threaded Barrel Compensator - 15X1
PWS FSC HK Threaded Barrel Compensator - 15X1
PWS FSC HK Threaded Barrel Compensator - 15X1
PWS FSC HK Threaded Barrel Compensator - 15X1
PWS FSC HK Threaded Barrel Compensator - 15X1
PWS FSC HK Threaded Barrel Compensator - 15X1
PWS FSC HK Threaded Barrel Compensator - 15X1
PWS FSC HK Threaded Barrel Compensator - 15X1
PWS FSC HK Threaded Barrel Compensator - 15X1
PWS FSC HK Threaded Barrel Compensator - 15X1
PWS FSC HK Threaded Barrel Compensator - 15X1
PWS FSC HK Threaded Barrel Compensator - 15X1
PWS FSC HK Threaded Barrel Compensator - 15X1
PWS FSC HK Threaded Barrel Compensator - 15X1
PWS FSC HK Threaded Barrel Compensator - 15X1
PWS FSC HK Threaded Barrel Compensator - 15X1
PWS FSC HK Threaded Barrel Compensator - 15X1
PWS FSC HK Threaded Barrel Compensator - 15X1
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Quantity Save Reduced Price
1st unit $98.95
3 or more units. $5.00 $93.95
6 or more units. $10.00 $88.95
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Product Reviews

Write your own review


"PWS comp"

Chris on 2/17/2012 8:46:30 AMVerified

Overall Product Rating:


Awsome product!!! Perfect fit and finish. This brake was the perfect choice for my G3K.


"Outstanding muzzle device for PTR91"

Maxx Taylor on 6/18/2013 2:27:30 PM

Overall Product Rating:


I had one of these on a "CAI Cetme Sporter"...I could not make it fit properly, but it certainly did reduce perceived recoil when it did stay clocked. Now, I have added one to a new PTR91 and it fit perfectly. I understand that the crush washer that is included is designed for the contour of the PTR barrel. That said, the reduction in perceived recoil is almost "magical", not only for comfort, but for being able to control this beast of a rifle. If all of that is not enough, I test fired the rif... More details


"Buy it now"

Christopher Cox on 2/4/2012 10:47:19 AM

Overall Product Rating:


I put this compensator on my PTR 91, it tames the recoil more than I ever dreamed. If you have a rifle this will work on, as I said "Buy it now" You will be glad you did.


"Great Comp"

Jason Bullock on 2/7/2013 11:48:55 AM

Overall Product Rating:


I added this on my PTR91KF and it looks awesome. I was worried that it would look funny on the rifle but its really pleasing to the eyes. Installation was real simple with the supplied crush washer and real similar to adding one to an AR. It mounts solidly and times perfectly. I haven't had a chance to shoot it yet due to the recent ammo shortages of .308 win but I expect it will work without a hitch. Would recommend it! 2 thumbs up HK parts!


"PWS muzzle brake"

Steven R Salatino on 9/28/2013 10:39:25 AMVerified

Overall Product Rating:


A must have for this heavy recoiling rifle.I have one on an Ar-10, and the recoil reduction is about 40 percent.


"Looks and works great"

Troy Price on 7/15/2011 10:51:37 PM

Overall Product Rating:


I put this on a greek built springield sar-8 this device works great in reducing recoil. I just wish it would screw on tight and flush and not have to use the allen screw. It also is great because it counts as one of the american made parts


"Highly Recommended"

Spencer on 8/31/2011 4:47:39 PMVerified

Overall Product Rating:


These are great flash hiders, and reduce muzzle rise tremendously. Very happy to find these for my HK! Thanks Again!


"Michael Norton"

Michael Norton on 2/14/2013 9:13:45 AMVerified

Overall Product Rating:


The PWS compensator/flash suppressor is everything described on the website. It took a little work to install, but it looks mean and accents the business end of my PTR-91.


"best mod ever"

nathan herning on 3/14/2013 12:49:56 AMVerified

Overall Product Rating:


Easy install,works great.


"Very Effective"

M Matias on 1/15/2015 12:51:44 PM

Overall Product Rating:


Very Effective at keeping muzzle rise at a minimum with the ability to make up shots quick with the ability to keep sights on target. I did add a heavy buffer before adding the FSC91 and didn't notice any changes in the recoil or muzzle rise till I added the FSC91 so I'm not sure if it was a combination of the two or the compensator by itself.