MFI FN PS90 M4 Belgium Marked Fake Silencer / Barrel Shroud (Price includes USPS Priority Mail & Insurance)

SPECIAL NOTE ON 5.7 AMMO:

Extensive testing has shown that of the 3 commercially available 5.7 ammo that the SS197 is the PREFERRED munition to use. Testing was done in late 2005 and the only available ammo was all manufactured by FN. We have NOT re-tested any ammo since, so this information is all that we have. We continue to use the FNH SS197 to present time and performance has remained the same.

The SS195 has proven to be EXCESSIVELY DIRTY and WILL cause massive fouling and carbon build up between the fake silencer and the flash suppressor of the PS90. While this is NOT dangerous to the user it does make getting the fake silencer very difficult to remove.

Even as few as 30 rounds of SS195 will result in this problem. If you use the SS195 and have this removable issue the best resolution is to remove the set screws and spray WD-40 or other lubricant into the holes or down the rear open air gap around the barrel and also down the front end in the bird cage area (use a lot) and let it run down the barrel to the PS90 Flash Suppressor. Let it sit 15 to 310 minutes and then gently work the fake silencer free. WARNING trying to remove without lubricate could result in damage to the finish of the PS 90.

The SS196 ammunition has not yet been tested. It remains unfindable at any reasonable price.

Please use the SS 197 ammunition:

We have fired over 300 rounds of the SS 197 at one time and have NOT run into any excessive carbine build up. We highly suggest that regardless of the ammunition that you choose to use that you test 15-20 rounds first and then check to see if the fake silencer moves freely or not. As you know we are not in control of what goes into any ammunition. Ammunition can vary form Lot to Lot as well. I would suggest that you clean the shroud (via removal) every 300 rounds or so.

MFI will NOT be modifying existing in stock product to allow use of the SS195.

As of 01-01-2014 we NO LONGER test any new ammunition. As of 2008 no customers have come forward with any problems with any of the new ammo, so we have concluded that the issue has always been with ONLY the SS195. We will NOT be re-testing the SS195 for any reason so suggest that you just avoid it all together.

It is pointless to test and retest all available ammo when the only issues have been with one single source and type. In short we do not want to raise the price of our product due to the cost of testing and buying ammunition when no one has come forward with any problems since 2008.

The issue has always been with the ammunition and NOT our product.

We will make changes to this page if customers alert us to any new dirty ammo on the market. Ammo to avoid will be posted here.

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AMMO TO AVOID:

• FNH SS195

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