With our patented Low-Profile Optics Mounting System and unparalleled modularity of the FN 509 platform, the FN 509 Compact MRD joins the ranks packing a full-size punch in a compact, optics-ready package. The pistol is 9mm and striker-fired with 3.7-inch barrel, standard 12+1 capacity and the capability to accept all higher capacity FN 509 magazines. The patented FN Low-Profile Optics Mounting System accepts nearly all commercially available miniature red dot optics and features blackout iron sights that co-witness. The improved controls aid in manipulation, the new improved texturing on the two included backstraps provides better recoil management, and a new flatter faced trigger allows for more controllable trigger press and cleaner break.

Full-sized performance in a concealed carry package

Striker-fired autoloader

Double-action operation

Fully ambidextrous controls

FN Low Profile Optics Mounting System with plate adapters for direct mounting of more than 10 optics

All-black co-witness iron sights

SLIDE

Easily racked, combat-style sights

External extractor; loaded chamber indicator

Improved front and rear cocking serrations

BARREL

Cold hammer-forged stainless steel

Recessed target crown

Polished chamber and feed ramp

FRAME

Polymer construction with replaceable steel frame rails

Shortened grip for easier concealment

Enhanced grip textures which enables faster follow-up shots in all conditions

Interchangeable backstraps

MIL-STD-1913 accessory mounting rail

Improved flatter face trigger

OPERATING CONTROLS

Fully ambidextrous slide stop lever and magazine release

MAGAZINE

High visibility, low-friction follower; polymer base with black finish

Comes with one 12-round and one 15-round magazine or two 10-round magazines

Compatible with FN 509 17-round and 24-round
magazines with appropriate magazine sleeves

SHIPS WITH

Two interchangeable backstraps

One 12-round and one 15-round magazine or two 10-round magazines

Owner’s manual

Locking device

FN logo soft pistol case