Accessories for FN

FN Herstal, the Belgian maker, builds the striker fired 509 family, the .45 ACP FN 545, and the FN 502, a .22 LR pistol that many shooters use for low cost training and rimfire matches. Our FN range is small and covers three upgrades, one for each of these guns.

FN 502: adjustable sights

A .22 pistol is often where shooters practise their sight picture, so the sights matter. LPA makes adjustable sights for the FN 502 with four sight pictures: fiber optic for a bright front in daylight, white dots, white lines, or blank for a sharp, glare free picture. Because rimfire loads shoot to different points, being able to dial the rear for each one is worth having. Choose in Sights for FN.

FN 509: a red dot without a cut

For a 509 slide without an optics cut, an Outer Impact type C mount replaces the rear sight in the dovetail. It takes optics built to the Trijicon RMR, C-More RTS or Docter footprint, whatever the brand, and needs no milling: Red dot mounts for FN.

FN 509T and 545: magwells

For two FN pistols, the 509T and the 545, Toni System makes a polymer magwell that is moulded together with its own backstrap. Its wide mouth catches a magazine that comes in at an angle, and the extended backstrap gives your palm a fixed reference on the frame. Check what your competition division allows before fitting one: Magwells for FN.

The model pages are Accessories for FN 502, Accessories for FN 509 and Accessories for FN 545.

Frequently asked questions

Does the magwell replace my backstrap?

Yes. The Toni System magwell comes with its own backstrap for the 509T or 545.

Will the 509 mount fit a 509 with an optics cut?

It is made for slides without a cut. If your 509 is optics ready, the cut takes a plate instead.

Which sight picture for a .22 trainer?

Match your main gun. If your centrefire pistol has a fiber optic front, use the same on the 502 so practice carries over.