NEW! FNS & FNX Competition Sights Now Available! 1



Warren Tactical Series-Sevigny Competition Sights for 9mm and .40 FNH FNS and FNX Pistols

Rear Sights- Plain black

  • .125” wide notch
  • .150” wide notch

Front Sights- Plain black and Fiber Optic

For most FNS and FNX pistols and ammunition we recommend .220” tall fronts. Point of impact (POI) with most 115 grain and 124 grain ammunition should be at or slightly above point of aim (POA) at 25 yards.  We have found heavier weight bullets, 135 grain and 147 grain, will hit slightly higher than 115 grain and 124 grain with the .220” tall fronts at 25 yards.DSC_0922

  • .105” wide x .220” tall
  • .115” wide x .220” tall
  • .105” wide x .240” tall*
  • .115” wide x .240” tall*


We recommend a .240” tall front only if experiencing greater than a 3” point of impact with a .220” tall front at 25 yards.

There has been mixed POA/POI feedback for the respective front height selections. Our recommendation is the .220” because it is better for the bullet impact to hit slightly high at a given distance than to hit low.

DSC_0902Some pistol and ammunition combinations may require a lower front height..200” tall fronts in plain and fiber optic are estimated to be available in May 2014.

Additionally, the shorter front will offer correction for those experiencing an unusually low POI with their pistol. Our goal is to help FNH customers get the best results with their respective pistol and ammunition.

Performance Recommendations

All sight ratios allow for fast acquisition and precise alignment when engaging at speed.

Taylor your selection based on personal preference and type of shooting.

  • .150” wide rear notch with a .115” front- Best for practical shooting, speed steel and target shooting. Fairly open sight picture.
  • .125” wide rear notch with a .105” wide front- Best for practical shooting, speed steel and target shooting. Slightly tighter sight picture than the .150” rear/.115” front.DSC_0944
  • .125” wide rear notch with a .115” wide front- Best for PAR-time shooting sports and target shooting. Tightest sight picture.

Other Technical Info

Aiming surface of the FNS/FNX front sight is back drafted with 50 LPI serrations.

Aiming surface of the rear sight is back drafted and smooth; free of distracting undercuts or serrations.

The contrast between the flat rear and serrated front provides the cleanest sight picture available.

The rear sight set screw is intended for secondary retention. If fit properly the sights will not move.

All sights are matte black with rust preventative finish.DSC_0897


For FNS sight installation, please contact a qualified gunsmith in your area. If you have trouble finding someone in your locale, please contact Sevigny Performance for installation on your slide. We guarantee sights to be central within .005” to the outside surfaces of the slide.
















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One thought on “NEW! FNS & FNX Competition Sights Now Available!

  • Allen Marshall

    Thanks for a great product. I appreciate how quickly this was shipped. They were shipped within 24hours of my order and I received them 3 days later. This is my first set of aftermarket sights and I finally got to the range to test them out today and I must say these sights are amazing. I love my FNS-9 and these sights made a world of difference. There is great information here, it really helped me choose the best sights for me, with ease and confidence. Thanks again guys.