FN 509 midsize for sale
Updated · 23 products · 18 in stock · prices refreshed daily
(6)
FN 509M MRD Midsize 9mm Pistol, Black - 66-100587
Brand:
FNH
Action:
Semi-Auto
Barrel Length:
4"
Caliber:
9×19mm Parabellum
Capacity:
15
Finish Per Color:
Black
(0)
FN 509 Midsize Tactical 9mm 4.5" Barrel 24-Rounds MRD Ready
Action:
Semi-Auto
Barrel Length:
4.5"
Caliber:
9×19mm Parabellum
Capacity:
15
Finish Per Color:
Black
(0)
FN 509M MRD Flat Dark Earth 9mm 4" Barrel 10-Rounds Co-Witness Iron Sights
Brand:
FN America
Action:
Semi-Auto
Barrel Length:
4"
Caliber:
9×19mm Parabellum
Capacity:
10
Finish Per Color:
Flat Dark Earth
(1)
FN America 509 Midsize MRD 9mm Pistol, Blk - 66-100588
Brand:
FNH
Action:
Semi-Auto
Barrel Length:
4"
Caliber:
9×19mm Parabellum
Capacity:
10
Finish Per Color:
Black
(0)
FN 509 Midsize Tactical 9mm 4.5" Barrel 10-Rounds MRD Ready
Brand:
FN America
Action:
Semi-Auto
Barrel Length:
4.5"
Caliber:
9×19mm Parabellum
Capacity:
10
Finish Per Color:
Black
(0)
FN FN509M Tactical Flat Dark Earth 9mm 4.5" Barrel 10-Rounds 5 Mag Bundle
Action:
Semi-Auto
Barrel Length:
4.5"
Caliber:
9×19mm Parabellum
Capacity:
10
Finish Per Color:
Flat Dark Earth
(0)
FN 509M T PROMO 9MM 4.5" 10RD MAGS BLACK
Brand:
FN America
Action:
Semi-Auto
Barrel Length:
4.5"
Caliber:
9×19mm Parabellum
Capacity:
10
Finish Per Color:
Black
(0)
Fn 509m Tactical Bundle 9mm 4.5" 15/24Rd Mag Fde
Brand:
FN America
Action:
Semi-Auto
Barrel Length:
4.5"
Caliber:
9×19mm Parabellum
Capacity:
24
Finish Per Color:
Flat Dark Earth
(0)
FN 509M T 4.5" 10RD NS HSN 407C BLK UPC: 845737018412
Brand:
FN America
Action:
Semi-Auto
Barrel Length:
4.5"
Caliber:
9×19mm Parabellum
Capacity:
10
Finish Per Color:
Black
(0)
FN 509 Midsize Tactical Flat Dark Earth 9mm 4.5" Barrel 10-Rounds MRD Ready
Brand:
FN America
Action:
Semi-Auto
Barrel Length:
4.5"
Caliber:
9×19mm Parabellum
Capacity:
10
Finish Per Color:
Flat Dark Earth
(0)
FN 509M Tactical 9mm 4.5" Barrel 24-Rounds
Brand:
FN America
Action:
Semi-Auto
Barrel Length:
4.5"
Caliber:
9×19mm Parabellum
Capacity:
24
Finish Per Color:
Black
(0)
FN 509MT 9mm w/Holosun 407C Red Dot FDE Semi Automatic Handgun
Brand:
FNH
Action:
Semi-Auto
Barrel Length:
4.5"
Caliber:
9×19mm Parabellum
Capacity:
15
Finish Per Color:
Flat Dark Earth
(1)
FN 509M 9mm 4" 10+1 Black Interchangeable Backstrap Grip
Brand:
FNH
Action:
Semi-Auto
Barrel Length:
4"
Caliber:
9×19mm Parabellum
Capacity:
10
Finish Per Color:
Black
(0)
FN 509 Midsize Tactical Flat Dark Earth 9mm 4.5" Barrel 24-Rounds MRD Ready
Brand:
FN America
Action:
Semi-Auto
Barrel Length:
4.5"
Caliber:
9×19mm Parabellum
Capacity:
15
Finish Per Color:
Flat Dark Earth
(0)
FN 509MT 9mm w/Holosun 407C Red Dot Semi Automatic Handgun
Brand:
FNH
Action:
Semi-Auto
Barrel Length:
4.5"
Caliber:
9×19mm Parabellum
Capacity:
24
Finish Per Color:
Black
(0)
FN FN 509 Midsize MRD Flat Dark Earth 9mm 4" Barrel 24-Rounds
Brand:
FN America
Action:
Semi-Auto
Barrel Length:
4"
Caliber:
9×19mm Parabellum
Capacity:
24
Finish Per Color:
Flat Dark Earth
(0)
FN 509M MRD 9mm, 4" Barrel, Black, Holosun 407C Red Dot, 24rd
Brand:
FN America
Action:
Semi-Auto
Barrel Length:
4"
Caliber:
9×19mm Parabellum
Capacity:
17
Finish Per Color:
Black
(7)
FN 509 Midsize 9mm 4" Pistol, Black - 66-100463
Brand:
FNH
Action:
Semi-Auto
Barrel Length:
4"
Caliber:
9×19mm Parabellum
Capacity:
15
Finish Per Color:
Black
(0)
FN America FN 509 Midsize LE 845737010034
Brand:
FN America
Action:
Semi-Auto
Barrel Length:
4"
Caliber:
9×19mm Parabellum
Capacity:
15
(0)
FN 509M MRD 4" 10RD NS HSN 407C FDE UPC: 845737018399
Brand:
FN America
Action:
Semi-Auto
Barrel Length:
4"
Caliber:
9×19mm Parabellum
Capacity:
10
Finish Per Color:
Flat Dark Earth
(0)
FN 509M MRD 4" 10RD NS HSN 407C BLK
Brand:
FN America
Action:
Semi-Auto
Barrel Length:
4"
Caliber:
9×19mm Parabellum
Capacity:
10
Finish Per Color:
Black
(0)
FN 509M 9MM PSTL BLK 4.5" BBL TRITIUM NIGHT SIGHTS 3-15RD MAGS
Brand:
FN America
Action:
Semi-Auto
Barrel Length:
4"
Caliber:
9×19mm Parabellum
Capacity:
15
Finish Per Color:
Black
(0)
FN 509 Midsize Tactical 9mm Striker Fired Semi-Auto Pistol - 4.5" - Flat Dark Earth - 10rd
Brand:
FN America
Action:
Semi-Auto
Barrel Length:
4.5"
Caliber:
9×19mm Parabellum
Capacity:
10
Finish Per Color:
Flat Dark Earth
Marketplace Insights
★ 4.9/5
based on 8 customer reviews across 23 products from 25 retailers
Highly praised FN 509 Midsize offers excellent accuracy, reliability, and ergonomics with minor trigger and mag release concerns reported by one user.
What customers like
Accuracy & Reliability63%
hasn't jammed once with over 300rds of varying grain ammunition
Ergonomics & Comfort50%
Fits my hand very well
Shooting Quality50%
Shoots Great and takes every brand of ammo
Build Quality & Feel38%
This weapon is well made and feels like quality in the hand
Common concerns
Trigger Quality13%
That scratchy trigger thing tho!
Mag Release Design13%
The mag release runs into your trigger hand
Frequently Asked Questions
FN 509 midsize for sale
Is the FN 509 midsize a good gun?
Whether it's "good" depends on your needs. The FN 509 Midsize is striker-fired, holds 15-24 rounds, and is praised for accuracy, reliability, and ergonomics. It suits concealed carry or home defense. Priced around $800, with multiple variants available. Handling one before buying is recommended.
How much is the FN 509 midsize?
FN 509 Midsize pistols typically cost around $807, with most listings between $556 and $930. MSRP ranges from $639 to $949 depending on configuration, and all eight variants are currently in stock across 23 retailers.
What is the difference between FN 509 full size and midsize?
Full-size has a longer grip holding 17 rounds; midsize grip is shorter, holding 15 rounds. Both share identical slides and barrels. The midsize conceals more easily and suits smaller hands, while the full-size offers more capacity and a longer grip for better control.
How much is the FN 509 midsize tactical?
FN 509 Midsize Tactical pistols typically cost around $807, with most listings between $556 and $930. MSRP ranges from $639 to $949 depending on configuration. All eight variants are currently in stock across 23 retailers.
How many rounds does a FN 509 midsize round hold?
The FN 509 Midsize holds 15 rounds in its standard magazine. It is also compatible with larger FN 509 magazines using an adapter sleeve, increasing capacity beyond 15 rounds.
What is the difference between 509 and 509 MRD?
The 509 Midsize has a four-inch barrel and longer frame holding 15-round magazines. The 509C MRD is a compact version with a shorter frame and slide, designed to mount mini red-dot optics and weapon lights while remaining concealable. Both are striker-fired 9mms, but the MRD is smaller overall.
Is the FN 509 good for concealed carry?
Yes. The FN 509 Compact and Midsize variants work well for concealed carry. Both offer reliable striker-fired operation, good ergonomics, and proven durability. The Compact's smaller frame aids concealment while retaining adequate capacity, making it a solid choice alongside established options like the Glock 19.
